I have the 25% Aeroworks Edge that weighs 9 1/2 lbs. I imagine yours is the same size. I have 2 tail mounted servos for the elevator(Hitec 605's) and a Saito 150 up front with on board glow.

My onboard glow is mounted on the GG. I didn't have to add any weight to the plane.

Hope this is helpful.