Ever thought about sailplanes? The Sig Riser 100 (100") is a good beginner to sport pilot in mind. You can build it as a pure sailplane or you can can set it up as electric too. There is also smaller version, the Sig Riser 2 meter 78 1/2". Just a thought. Something different to think about. The exciting part of flying sailplanes is to find and fly in thermals and to stay up for a very long time. Or you can fly slope which will give a person a lot of challenge also.