I have a Kangke CAP232 120 and am running a Saito 180 in it. I'm guessing it will need 5 ounces of nose weight to balance. So I'd like to attach my 6 ounce 1700Mah NiMh battery to the underside of the engine mount. I'm thinking of just getting 4 longer bolts that thread into the the engine mount and use the excess thread on the bottom side to hold a ply deck to the underside of the mount/engine. I'll use lock nuts on the excess thread to attach the deck. I'll tie wrap the battery to the decking with foam under the battery. The question is will the stock aluminum engine mount handle the extra 7 ounces of weight from the battery and decking/foam? Should I instead attach one side of the decking to the firewall and the other side to the engine mount so I don't have the entire battery hanging on the mount?

Thanks