RE: 3rd plane Arf or easy kit.
Model Tech's P-47 is in your price range and very easy to fly. Might be a bit much for a .60, though. If you don't mine WWI, I can highly reccomend the Model Tech SE-5A Arf, not .60 sized but a very nice flier. World Models also makes a .60 sized Spitfire which is supposed to be a very good flier.
Andy