I don't fly 3D but I have seen posts on RCU of people who have it on glow and says it is good. Uplines are fine if you have it trimmed. For whatever reason, if the rudder is not straight then it will track at an angle. It also seems to be affected by engine thrust. Make sure everything is square.

As far as engines, Brison engines from Brison and ZDZ engines from RC Showcase. I would first try to get an engine through RCU and then go to the distributer if I cannot find what I am looking for.