CVF dosn’t need PAAMS thats why we have type 45, intrestingly know one ever suggests CVF should have self defence against subs, it would be silly to fit sonar and torpedo tubes to deter submarines but a good idea to spend a fortune on outfitting CVF with sea viper! Wonder how much that would push up costs? Subs are dealt with by merlin and type 23, air attack by type 45.
Fixwing AEW is the only way to go, that way means it can only fly of the carrier where as rotorwing can land on anything with a flight deck and is not limited to the carrier, something the RN did whey were getting 20+ harriers on an invincible, basing AEW of another platform.