RE: GP .60 Reactor Bibe
Ok, that's certainly cheap enough to experiment. I thought you were going with a Hacker (which is an awesome choice, but more expensive so it pays to know exactly what you're getting).
I don't have much experience in large(r) glow/electric conversions in this size range so I like to know the power and instant thrust available beforehand for this weight. One thing I did learn is that for 3D the thin electric props are often NOT a good choice cause they cavitate and/or twist when overloaded so they mostly just make noise when you punch them. That would be a new prop size for me too as I normally use a 6" pitch on my glo birds for 3D.
Keep us posted on your progress. I'll do the same if I can get my act together and finish some other projects now on the bench.