Fateh 110 if I remember correctly. the kind used against Al-Asad AFB in Iraq a couple years ago. 300 km range and very precise. If the Iran’s have these in the tens of thousands then the Gulf countries will need all the air defense systems they can get.
BS, several hunderd max with mix of missiles. A single average price 20 million dollar missile, you can shoot all your weapons in 1 time. But after that you are empty .