I am building one now and putting in a GMS 120.Are you using the supplied cowl or did you get a fiberglass.I think i will put aftermarket legs on it also because it deserves it.I guy in our club has a saito 150 in his and it is not an advantage.To much wieght for a plane this small and it can,t use all that power.I will cover mine like the box because no won else seems to and it will be instantly reconizable.