If your looking for a 1.20 size go with the Goldberg Ultimate. You can get it in either a kit or ARF. If you want to use a 4-stroke engine Go with a Saito. If your looking for a cheaper 2 stroke Go with anything in the 90 to 1.08 range. In my opinion a .60 size 2 stroke wouldn't fly it the way an aerobatic bipe should fly. Just my 2 cents.