RE: Something bigger than a fiddy
I had this same question and ended up getting a Brillelli 60. It's the same weight as a DA 50 or ZDZ 50 NG but should be able to pull a 22x8 prop a few hundred higher (on pitts mufflers) which is about whats needed for that weight. I have not gotten through break in on mine and it's only about 7000 RPM on a Xoar 22x8. I hope to be around the 7200-7300 after 4 gallons. Right now, at less than 2 gallons, it pulls about the same as a 50cc but is probably not leaned enough.
PS: The ZDZ 60 and MVVS/Evolution 58 are both a pound heavier than the DA 50, ZDZ 50 NG, and Brillelli 60 so you are adding a pound to an already heavy plane. For example you're now at 19 pounds instead of 18 pounds.