Got an old one it she's straight and don't leak, has the original 40 Merc 2 stroke still on it but no tilt/trim. I just bought a CMC pt130 with the clamp on adapters and transom reinforcements. This will give me an additional 6 inch of set back and hang approximately 50 more pounds on the back end, book says motor weighs 150. Any opinions on how this is gonna work, is it going to cause problems on this old boat?