Hi there!, for anyone interested, I've just got my Liney boxer running, it's taken ages! but it turned over with the first puff of air, here are a couple of pics, it runs even without the prop. Now I'm making a nice wooden prop from a piece of rosewood I had, I'll just polish it up a bit and clean up the soldering and it can sit on the shelf in the livingroom while I think of something even more fiddly to make!