Might be a good idea to check with your LHS. Here they have all the parts for Raptors, but not much else. I busted a tail rotor link saturday. It was nice to be able to stop by the LHS, pick up a new link set and be back in the air the next morning. I am a beginner so i have near zero experience, but so far i am quite satisfied with the Raptor. Getting in the air without trouble will depend on getting it set up corectly, be sure to get experienced help.

I hear the OS 50 is substantially better than t 46. A reliable steady running engine makes flying a lot more fun. A wise old man once told me "don't skimp on engines or radio equipment." you'l be far happier with the best equipment and an empty wallet, than you will be with second rate equipment and a couple lowsy 20$ which would just be wasted on food or something.