Raf Stations

Hi there all fellow modellers!! I am interested in trying to build a diorama of where our bomber/fighters flew from but.......... particularly interested in bombers because there was once a bomber station near where i live. Does anybody know if you can obtain resin/plaster mould kits of airfield buildings?? The Airfix tower is a mess so that is not even a starter but what about cement/brick buldings or even Nissen huts?? Should be ok with vehicles but what ever happened to 'Model Transport'? once a cottage industry producing resin lorries and conversion kits. Any guidance/help/pointers would be appreciated .