Lots of stuff in the archives
...on this subject. After you get done restoring your topsides, take a look at, and perhaps join, the H28.5 Website (see link). Lots of info on this model boat there, too. The site is a great place for owners to exchange info on what problems or issues they've had with their boats, and learn how others may have solved them. I also have an '86 and love it. Good luck with yours.