You should be OK with the Moki on balance. The BME is about the same and that worked with no extra weight added. You have a lot of space fore and aft to mount your battery to adjust for balance.

I used a pull - pull set up on mine, with the elevator servos in the rear. If You cross the pull pull cables, they will clear a former back in the rear of the fuse.

One other note. I put a square of plywood on the root rib with a blind nut so that I could use a bolt from the inside to hold on the wings instead of the dowel into the wings. Personnal preference.

On the new kit, Airwild did this same thing as well.

Good luck with it, you'll like it.