I think it is around 540 sq ins wing area. At that weight with a 46 in the front it should fly really good. Note, the elevator/flap ratio should be about 2 to 1 as the flaps are quite large and the tail not so much so. If you set it up close to 1 to 1, the pitching force from the flaps is almost eqiual to that from the elevators and after you fly it you will not like me! Propoerly trimmed, it can do a great pattern. Keep the nose down and airspeed up after the engine quits and then flair for touchdown, this thing has a bit of drag!.
Don