OK, I have some weights to ponder. The airplane less finish, engine, lead outs and fuel tank is 3.95 oz. the .074 big Mig Norvel is 2.95 oz without prop. I plan on a modest finish either using silkspan or polyspan with a dope finish. Min. of 2 coats nitrate on bare wood, 1-2 coats dope and talc filler, covering with 3 coats nitrate with min of 2-3 coats BR color dope. I think I will go with the Norvel 074 to start with, I can always up the power to a Fox 15 if needed. Richard.