It would be good to find the pitch of the prop that was on it, Was it aluminum or SS? Michigan Wheel has the Appollo series that you order a hub for your motor and the wheel drops on the hub. They come in SS or aluminum.
Pull the old prop off the motor. The diameter and pitch should be stamped on it somewhere around the hub. Either on the front or back. You should see a XX x XX number. ie; 13x17 or 13 1/2x17. Could be any combination of numbers for that motor within a manufacturers specification range. The first number will be the prop diameter. The second number will be the pitch.