I have a UEDA 55 twin glow plug engine that I am considering trying to trade for a 4 stroke engine. The UEDA looks as if it has never been run. It may have been mounted. The only thing I can see wrong is that the idle bar is missing. It may of had a strap on muffler. Anyway, I was wondering if someone could give me some type of idea what it might be worth. I am sure only a collector would want it. Thanks.