Are you sure about that? Does India not possess an aircraft carrier and awaiting more? I recall reading about Indian bases in Central Asia, considering this - are you certain your Erieye is secure from the north and south? You also expect to maintain territorial integrity during an all out war, are you certain one or more of your own bases will not fall into enemy hands?
Ive said this before ground detection range of your Erieye is 100 km in ideal conditions; this fact alone puts the Erieye at risk, since it will have to get a lot closer to the battlefield and fly constrained by its blind spots aft and rear. Also the area of engagement does not remain static, when supersonic jets and hypersonic missiles are in play 100 km represents approximately 6 minutes of flying time at Mach 2.
If you still think 360° coverage is over rated then consider this, the Hawkeye E-2D program continues to mount the linear electronically scanned array APY-9 radar on a rotating dome adding several million in development and maintenance cost why? Simple, because someone in US Navy thinks 360° coverage is worth the extra cost and maintenance hassle.
Finally, I dont think anyone here gets what Ive been trying to convey for a while now I am in no way suggesting the Erieye is a bad choice, all things considered it is a very sensible choice for the PAF. But I do believe PAF needs more than just 4 AWACs/AEW&Cs that have been ordered so far because in an all out war with a numerically superior adversary you will likely lose one or more systems.