RE: Funtana Battery securing
Sorry no photo but I can explain what I did with a YS63 powered FuntanaS. After I installed the fuel tank, I wrapped my flat 4 cell 1100 MAh NiMH in foam. Then I pushed it under the tank between the slant in the firewall and the tank. Its as far to the front as it would go and to the left on the fuse. I CA'd thin balsa strips between the firewall and front former to hold it in place. Since our engines are about the same weight, you will probably have to put the battery somewhere under the fuel tank as well. My ARF uses a 1.7 ounce True Turn Spinner so your spinner might be a little lighter. Anyway mine balances out at 5.5 inches.
Just make sure not to put any pressure on your throttle control rod as it will cause binding. I surrounded mine with thin balsa so the tank or battery would not push on it in a high G manuever.
Joe