Where is good place to look for a prop, 80's and up models seem to be everywhere. My #'s are VWB52119 / 97X 20304. Engine runs like a top, I can start it up spinning the fly wheel by hand. I have the motor on 13' Waterbug (simular to Gheenoe) , I would like to find a 8X9, but the 8X8.25 will...