A good 46 would be a great choice because you can use that motor on so many other planes later on, just use throttle control. A gentleman at or Field uses a OS70fs but is way over powered, I fly a SR Telmaster on a TT91FS and never go above 1/2 throttle,and can even do long slow takeoffs at 1/3 throttle.

Fun plane, just see if you can get an experienced builder to help with the wing and take some of the dihedral out of the wing, I took half of it out of my second SR Telmaster, and it flys even better than the first. My first, after 15 years of flight was taken out in a Mid Air on landing approach.