and I came up with a new idea. 4 cyl. diesel Thermo King engine, Max Rpm 2800, prop will love it. I think it can be cut down to 220lb. and then maybe add a turbo. So on a KR-2 you have to add a little Aft C.G. bit longer take off roll, land a little hotter. don't matter whats up front as long as you got the room?