I would like a brand new engine over a used one for sure. I was eyeing an ASP FS52AR Four Stroke earlier on hobbyking not sure if that would be too much power. Any magnum/ASP 2-strokes you recommend?

edit: I dont know how much of a difference this will make for weight but I plan on reinforcing a couple areas of the plane specifically where the landing gear is attached. I dont know how much weight this will add/if that will effect engine choice