Hobie, I know it's a bit late but in answer to your Aden question most of the trooping UK - Khormaksar was done using BUA (British United Airways) VC10 and Britannias on charter. This was in addition to RAF Britannias, Comets and the odd new VC10.
This type of airlift is known as Strategic - The movement of pax, freight and mail between theatres.
Movement from Khormaksar to Kenya, Socotra, Riyadh, Midway, Salalah, Masirah, Muharraq etc used AT aircraft based in Aden which included Beverleys, Argosies, Twin Pinoeers and even a couple of Dakotas.
This type of airlift is known as Tactical - The movement of pax, freight and mail within a theatre.
Obviously use was made also of the new Hercules and Belfast but not on schedules to Aden itself. More info on El Adem too if you want it, I had the misfortune to serve in both locations!