Thanks for the input guys! I've been checking out clubs in my area. I found one that operates a field ten minutes from my house and has a beginner program. As far as an engine goes I think I will go with the LA because it will work in the PT40 and seems like a reliable engine (plus it's cheap). I can always upgrade the engine when I get into another plane. And, if I crash and wreck the engine I won't feel as bad. Other than that I'm not doing more building until this weekend but I looking forward to trying spackle as filler. I take it that if I don't fill the gaps the monocote will shrink into it and be visible.