Update _ Update _ Update! So I got the switch house built ... Missing a few odds and ends but its mostly complete ... And the Air compressor is fitted! Missing the blasters still two light grey installed to hold the railings in place. The Air tank will be getting a fuel oil sticker and black hose.  (Never mind the cylinder its just testing how many clicks I got before Im out ... So I can tweek my auto shut off rubber band. So far is has no interior but something is visible if you look carefully    I designed the back wall to remove to change batteries and to turn on the compressor. And finally the whole