If you keep your eyes & ears open and talk to people you will find many used 912 engines for a lot less than new prices. They are out there but you need to dig. I just heard about a low time 80 hp takeout that was sold not far from me for $5k.

To all the guys running 582s and 503s more power to you. But, I will not fly behind (or in front of) a 2-stroke.