RE: getting into nitro planes, need help
Servos and receivers: I use Hitec, Futaba and JR servos interchangeably. When buying new, I find the Hitec products reliable and inexpensive.
.46 sized engines: TT .46, OS. AX 46, GMS .47, Magnum .52 <-- all can be made to run like a deer. Currently I'm buying GMS and Magnum. OS are great engines, just like lamborghini's are great cars ($$$).
Portable, battery operated starters are recommended. Its very convenient to just bring a glow battery and starter to wherever your plane is on that prop strike.