First gasser model..
On the G23, you'll need to run about 70% nitromethane for fully aerobatic + 3D. Seriously, I've never heard anyone say 3D and G23 in the same sentence. I think you need to think about 40-50cc of lightweight gasser for 3D. Combine with about 14-16 lbs of plane with about 1200 inches of wing area.