Thanks Grosbeak...on the spinner, it is a Tru-Turn but you can't find it on their website. I had to send them the 15X7X3 prop and they made me one on special order. I am not sure if once they get the measurements if they then make them as standard or not. I could not find a spinner of the right size either, and I didn't want to grind into one. On the muffler, it is from J-tec and is their small canister pitts wrap around...only issue I had was the clearing the motor mounts on the exhaust side of the cylinder head. I used my dremel and took off enough material on the engine mount for it to clear. It should not present a problem as most of the bottom of the mount is left.

oops forgot to add...the spinner is a 2 1/2.