Just for comparison my os160 with a pump and a slimline pitts weighs 39 oz (just measured using digital scale)including thrust washer-bolt etc add ~3 oz for a mount (gp plastic). I think you will find you will need a bigger battery too for the gasser unless you want to recharge every 2 flights, add 2-3 oz to gas. If this plane has to have the nose weight why not , but that is what Im curious about. can it balance with a 160. Im not sure but I doubt an extra 4 ounces of fuel weighs 1/2 pound (16 oz vs 20 oz). I am really not trying to argue but I am a lighter is better guy too