Yet another much loved Airfix/Dapol kit, the engine shed , much altered and awaiting roof fitting. Windows are by Scale Model Scenery,  they have a growing number of very useful laser cut kits. The modifications I have made to this kit are very extensive, only the basic shape and the doors (also modified) still exist. The slatted vents on the clerestory roof are 3d printed, which I designed to fit. It has a inspection pit and a lean to workshop/office.