If ya want the performance ya gotta spend the bucks!!! Ya ain't gonna drive a corvette on a yugo budget!! hehehe

By the time you get a eng and convert it and then modify it to perform to your standards you would be farther ahead to buy a Moki. brisson, zdz, tauraus, bme or any other proven line that you like.
This way you end up with a warranty and a eng that doesen't require 2 hrs of maintenance for every hr of flying. IMO