Hello Mr Doe, that’s great, I say Build it. If your kit is original, I plan On building the Larger version. OS 50 UC engine. I flew my Flying Fool four about five years. Do a simple strut mod and beef up that area where the struts attach at six points. I am sure you have Hurd the stories about the top wing. Just so much larger than the bottom wing. I’ve been using a Toung muffler on all my planes, a guy builds them In Georgia. Going to order one for my OS 50. AJ