I have the first formosa (smaller one ep i think0
I put everything in it and it balanced perfectly (motor and batt) the only thing I did differently was not put the batt in the stock spot but where the esc and radio was suppost to go (put the radio and esc by the alerion servo) its a bit heavy but not horrible

what I was thinking to do for the estarter is cut the motor mounting stick (to bring the motor closer the the c.g) and use a smaller 8.4 gws 750mah nimh batt and put it between the servos that should balance it

I know I won't get the power of a 11.1 lipo but will it damage my motor in any way (i don't think so)