Anyone know where I might find a 11 diam. X 9 pitch 3 bladed prop for a '79 OMC SailDrive?? Also, My '79 O'Day 28 has the original wiring on it (still in good shape), but, a friend told me that it was wired like a 'house' (grounded wrong, chance of current going in the water, etc.etc.), Does this mean it's illegal for it to be this way, or just that it's not the current way to do it?