kit.yardley

Hi all I am building a "close to reality" Holmsley South airfield for flight sim. The buildings all come with Air Ministry numbers e.g. "Operations Block 2337/41" This uniquely identifies the design of the building. Does anyone know if there are any sites where these drawings can be found. If I cant find them then I shall have to resort to "representative" buildings. Seems a shame as accuracy is the goal. Many thanks