I just bought a 1985 bayliner 2850 contessa Sunbridge its in great shape but it's been in a slip for several years and never run much when I first got it and used it some and then noticed some water in hull around engine I've moved it to my house and plan on moving it to a new place but want to make sure to service the lower drive. I'm sure the bellows need to be changed. I've worked on anything from cars to heavy equipment but know nothing about boats but willing to learn and don't mind the work at all. Any suggestions?