I'm thinking about having someone go into my 750 Nighthawk's motor and replace all the gaskets and seals. Might as well have them do the cam chain tensioner etc. while they're in there. I'm guessing it will cost a pretty penny. Wonder what just replacing the motor with a rebuilt one (trade mine in, have someone else do the swap) would cost in comparison? Or selling it as is (everything is great; just leaks oil) and buying a newer Nighthawk off craigslist?