I have a J&C Pontoon boat, 24'6" in length currently powered by a 50h.p. outboard. Boat is capable of up to 120h.p. I want to keep the boat but would like to consider a repower to a diesel with I/O drive. Boat is used in fresh water lake. Probably doesn't displace more than 3,000lbs. Would much appreciate your thoughts on the possibilties.