I have just bought my first boat it is a 1970 15 foot fiberglass runabout. I am currently replacing all the wood at this time and will be starting on the motor soon. When I bought it the guy told me that he welded the shafts and it is direct drive no reverse or neutrual. How can I fix this problem as I would like to have reverse and neutrual. and was also wanting to know if 35 H.P is good enough for the boat. I will be using it for fishing and crusing around the lake No sking or tubeing. All advice will be appericated.