Just thought I would finalise this thread. I have settled on the consensus of you guys here and also talked to the guys at my LHS. Seems 4ch is the way to go.
Also partly because I find the 3ch Elev/Rudd planes on RealFlight to be a real awkward plane to fly. I need my Ailerons!
Managed to modify the Multiplex Easystar 3ch to include Ailerons, as this is the closest model to what I am getting, the J-Power Sky Surfer
, aka BlitzRCWorks Sky Surfer, aka Bixler V1.
Thank you all for your input