Goldberg Sukhoi
Several of them have been/are flying in our locale. None are slimers!!! Power plants go from Q-35, U.S. 41 to Brison 2.4 The Brison is the best. Just thought I'd let you know.
But if I had to choose a smaller engine, I'd go with the WVVS 1.6 on gasoline. I have one and it's a winner. It comes into Canada a bit cheaper than the RCS 1.4, too. Tex.