I know a guy that has a 1953 mercury 12 1/2 hp. with the gas tank thats made on top of the motor. He says it runs great and has had the carb. rebuilt but i have not seen it. The only thing that it is missing is the gas cap. He is asking $125 for it. Does anyone know if it's worth anything or not? Or if anyone is interested in it let me know and i'll give you the number.