Hi Kno3, yes I have mave made everything from scratch (or raw materials as I prefer to say) myself. The engine is the "cygnet" designed by Edger T Westbury, the rest being all my own design. The only thing I have bought is the pressure gauge, although I have drawings for a build your own gauge, but you have to draw the line somewhere. I even had to make some of my own nuts and bolts as I didn't have any in my stock at the time.