A useful recommendation depends somewhat on how you want to fly. Stick style airplanes are pretty flexible in their flight envelope. That particular engine might hover a .60 size stick. If tooling around and shooting touch and goes then you might get away with an 80 inch Big Sweet and Low stick as found on Outerzone. Generally speaking you could hang that engine off of anything rated for a 120 four stroke or a little larger. The CRCC engine is going to be lighter than the weedwhacker conversions that Foodstick mentions but it will still be in the same power range.