Why buy all at once? How about a kit? Goldberg Eagle 2, Sig Kadet Mk II, Sig Seniorita. Build for a couple of months then buy the engine and radio. Then when it gets re-kitted [

] it will be a lot easier for you to repair since you know how it went together the first time. It is really cool when a plane you have built from sticks leaves the ground for the first time

And by all means find a instructor. I did not listen to my LHS owner. He said get it built and I will teach you how to fly. That worked great the second time around!! Good Luck