RE: What Motor for Shoestring??
Jim,
I don't see that happening. The thrust line on this plane is pretty high. If you were to mount a rear exhaust engine on this plane, the pipe would run half way through the tank area. You would also encouter the landing gear, which is mounted inside the fuselage. I'm not saying that it can't be done, but it would, IMHO, be a large undertaking and not really worth the effort.
John