Only the cost of the German engine, and the M777 purchase by Australia are factual figures supported by links.
And bear in mind the M777 purchase by Australia isn't just for the guns;
http://www.dsca.mil/major-arms-sales/australia-m777a2-155mm-light-weight-howitzers
"The total value, if all options are exercised, could be as high as $248 million.
The Government of Australia has requested a possible sale of 57 M777A2 155MM Light-Weight Howitzers, 57 AN/VRC-91F Single Channel Ground and Airborne Radio Systems (SINCGARS), integration, spare and repair parts, support and test equipment, publications and technical documentation, maintenance, personnel training and training equipment, U.S. Government and contractor engineering and logistics support services, and other related elements of logistics support. The estimated cost is $248 million."
As you can see, there is a whole host of extra costs.
It is useful to note that the M777's 1970's era predecessor, the M198, is widely reported to have a unit cost of $527,000.
https://fas.org/man/dod-101/sys/land/m198.htm
And I'll keep saying this.
There is no way your mini cruise missiles can match the capability of guns.
Those 57 guns Australia bought can lob over 6800 shells an hour at a sustained fire rate of 2 rpm.
Those shells are travelling at a far higher velocity than a low subsonic suicide UAV, and therefore have far greater destructive power.
Those shells do not need to be calibrated and guided to a target, unlike the presumably 10,000 "missiles" you need to fire in just an hour to match the firepower (and that's being optimistic).
Those shells can be reloaded and launched easily, whereas even unguided MLRS have a longer reload time than shells, let alone this "missile".
Those shells are far easier on logistics, being more suitable in shape to mass transport, not needing fuel and other logistical requirements.
Let's up the numbers a little more so you can come to terms with the reality of the issue.
Those 57 guns can fire over 82,000 shells in a day. No, not 24 hours. Just 12 hours. Those other 12 hours can be rest time for the crew, maintainance breaks etc. Quite a cushy approac to war.
Push that to just a week of armed conflict and that's well over half a million shells. With 57 guns.
Did you know, in the opening 8 hours of the WW1 Battle of Verdun, the Germans fired 2 million artillery shells?
http://www.bbc.co.uk/guides/zydwtyc
I've seen various numbers giving a figure of about 45 million shells fired both sides in just that 1 battle. Though those figures are from the history channel website
http://amp.history.com/news/10-things-you-may-not-know-about-the-battle-of-verdun and reddit (read comments)
so they may not be the most reliable.
At the end of the day both figures are correct when it comes to guns! The heavier steel based would cost Iran $500K to build per gun at least! It requires massive presses and a huge amount of energy and materials for steel based
And far more for Titanium weight reduction! So $1,00,000 per unit for Iran is about accurate and that's when Iran's Ti factories are up and running at full potential! In 2008 Iran was conducting laboratory scale ti production and if all goes well by 2020-2022 Ti will not be a problem for Iran at all!
As for the Ti based M777A2 I didn't say each Gun was going to cost Iran $4 Million USD to build per unit or even $2Million USD to build!!!!!!!!!!!!!! I just pointed out the cost of one sale!
Again your talking nonsense! How many shells & troops do you think that truck plus another truck behind it can transport? and admittedly you said each shell will coast Iran at least $500 USD to build and fire I'll include the propellant charge in it too & your talking about at least 4ft long shell and propellant on a 155
82,000 shells! really your going to fire over $40 Million USD worth of shells!!!!
Plus your talking about front line guns 15-30km away from the action for a country that is not going to have Air Superiority against any major power!
You want links lets do my numbers for a small sized cruise missile using imported & domestic off the shelf parts and prices!
1. As I showed you a German Micro Jet P200 has 52lbf
jet engine is $4000 USD comes with power supply & Mini ground support unit check it online
The jet at full throttle uses 25 oz per min (NOT cruise speed! FULL POWER)
Total weight with power supply is 6Lb
1ft long
2. 250 oz of fuel = just under 2 Gallons of fuel = 16 lb cost $20 (Fuel & Oil) so at full throttle that's 10 minutes of flight time!
So a little over 3 ft long, 16lb & $20
3. Warhead = 10 lb a shaped charged explosive + frag & gun powder (AT MAX so you don't freak out $180 USD for Iran FYI an RPG costs Iran under $50 to build (NOT THE Launcher just the grenade)
So your warhead would be 8-10 inches long, 10lb max & $180
4. Air frame, Wings + flight control equipment & moving surfaces at high end made up of Carbon fiber + some aluminum + heat & tare resistant fabric all of which are produced in Iran today! in a ~ 6.5 inch wide diameter X 6.5ft long airframe In a multi section airframe will come in at well under 10lb and will cost well under $100 USD and you are free to check online prices of all those products but just so you don't freak out lets say $300 USD so you don't freak out!
that a 9 Gallon super strong CNG tank at 16lb
5.You can buy a 5lb Dell laptop for $400 USD and most of the weight is screen, casing & keyboard & that's 8GB of ram with 1TB hard drive ( in reality a $200USD HP laptop would be more than sufficient with all the memory & computing power that you'll need if programmed to do a few specific tasks and you don't need a screen, casing, keyboard,.... so when I say $200 is all the computing power you need it is not as you say arbitrary!)
https://www.cnet.com/products/dell-inspiron-3552-15-6-pentium-n3710-8-gb-ram-1-tb-hdd/specs/
https://www.cnet.com/products/hp-15-ba009dx-15-6-a6-7310-4-gb-ram-500-gb-hdd-us/
6. As for your optics here 4 1080P weatherproof IR cameras for only $280 USD that's $70 per camera & Iran actually builds these so it will be a lot cheaper than that! + the camera that came with the laptop + another 2 inch 140 degree wide angle camera on top of that for only $20 at Walmart for a grand total of $100 you get 3 cameras
https://www.lorextechnology.com/hd-...gd1pNnIZ036zZQSKPiHFPGrJGrJKm85RoCA2MQAvD_BwE
https://www.walmart.com/ip/2-0-inch...online&wl12=551133058&wl13=&veh=sem#read-more
7.Transmitter, receiver, extended antennas built into the rear stabilizers using radio wide band frequency all together is not going to cost even $100 but lest say you want something more high tech like using a cell phone & since you already have a computer for your computing power you don't need a high end smart phone a $200 Iranian built smartphone is good enough
http://en.mehrnews.com/news/104845/Iran-s-slimmest-and-lightest-Smartphone-on-the-market
As for the software, electrical engineering & adding semi automation we clearly aren't going to have a problem there
So your camera's, computer, batteries, flight control equipment controlling the batteries, transmitter, receiver is not going to be even 1 Ft long and at max 10lb at MAX
So that's what $5000-$5500(high end) USD with an imported $4000 USD engine!
So if Iran builds the engine it's self under $2000 is far from arbitrary!
So you have 52lbf of thrust on a missile that's 52lb & you can easily add another 20lb or more to it if you like!
Running at MAX thrust 25 0z per min in a 1-1 or at least close to 1-1 thrust to weight ratio! You have 250 oz of fuel so that's a 10 min flight at full thrust
I'll be ultra conservative and give it 350kph at full thrust with a heavier warhead & I'll let you do the math
BBC nonsense really 45 Million shells! Lets say you fire 1 million $500 shells that's what? $500 Million USD!
Just for the cost of shells you can fire 100,000 $5000 cruise missiles (with an imported engines) And at least twice that with home built engines!
If each of your $2500 USD home built cruise missiles takes out just 1 enemy solder that's 200,000 enemy solders taken out using one weapon system alone & you don't need to destroy civilian property in the process!
This is moor's law taking into effect in modern warfare and if you don't take note of it you loose because your enemy is & is developing swarm UAV's and cheaper cruise missiles!