Jaz if you want two small RAF bases then check out Catterick and Dishforth in North Yorkshire bot at side of A1. late 80`s I worked for a plant hire company so was in both regular with stuff for upgrades. Catterick had Nissan huts where you now see the new builds at side runway which aint used these days. Dishforth is the same had loads of huts bunkers all gone now, and is now a front line helicopter & training base for Puma`s, Seaking`s, Apache and all modern military helicopters.
They look really big on Google maps but are really small when you drive past them.