The number used through most of the study period was 135 planes, sufficient for full loads of each carriers, two (I think) squadrons for the RAF and training and attrition airplanes.
As money is tight both the RAF and RN want "their" bit. Last I heard the government was being cowardly and trying to keep both happy with smaller amounts !!!
The whole idea was that the whole force would be "purple", i.e. joint RN/RAF run and manned. On that basis the maintenance depot was set up at an RAF base, not Yeovilton - and then guess what, the RAF decided that they didn't want "their" men to go to sea !!!!!!!!!
Honestly it is a farce.