This is the Grasshopper Haulage Engine designed by Stewart Hart. All dimensions were converted from metric to imperial. FINALLY - with a lot of fiddling - this engine runs. I also made the regulator just to see if I could - it is right cute and works good. Pictures include miscellaneous parts, engine, regulator and regulator parts. Would also like to make the whistle. Will now attempt to dress it up a bit. Will post a video next.