Get the Hanger 9 Alpha Trainer at
www.horizonhobby.com and type Alpha in the Porduct Search. The engine is broken in (ready to run) the radio is intalled, and everything is made for beginners. Then find an instructor at your local flying field, which you can find through either your local hobby shop or the Academy of Model Aeronautics (AMA). Or you can take the easy way and just get a simple electric park flyer. Hobby Lobby has some good, easy park fliers, such as Wingo, or you could get him the Graupner Mini Piper.
www.hobby-lobby.com