RE: one old guy to another
You cannot go wrong with a Hitec Flash 4 (HTR971J) at Hobby-Lobby (and, no doubt, elsewhere). This has elevon/V-tail mixing, dual rates etc and comes with a Feather receiver and two HS 55 servos - ideal for small park flyers. The Mountain Models Tantrum [Speed 300-400 or small brushless] seems to be a very good aileron model - all balsa [for old guys like you and me, who enjoy the building as much as the flying].
Cheers, Phil