Add to that the P1154 could have easily operated from the Centaurs, Victorious and Eagle, without major modernisation / modification. My thinking in suggesting that the existing carriers be retained into the 80's, flying Seaharriers, would have been even more applicable if the P1154 was available.I think it's fair to say the P1154 was an option for the RN and equally that they largely killed it and lead the way to the F4. It would have been a very different aircraft to the F4, I sure it would have been more agile; but a 60,000 lb v 40,000 lb and VSTOL design, load and range would be a lot less. But that's not the point, the F4K lasted 8 years in one operational sqn and was not available for the: Falklands/GW1, GW2 & Afghanistan. The P1154 would have been a far superior capability to the: FRS1, FA2 & AV8B. This is probably all hindsight but if you were armed with that, the P1154 was a much better offering for the RN than the F4K.
It is my belief that two, three or possibly more existing carriers in decent material condition, flying Seaharriers and Seakings would have provided (overall) more capability than Ark Royal (post Phantom refit) or the Invincibles. It could have been justified as a cost saving, using existing hulls instead of building new ones, having significantly smaller airgroups (hence smaller crew), and removing the justification of a RN Phantom buy, while allowing the order for new ships to be pushed back into the late 80's or early 90's.