I just purchased a 1986 Hunter 28.5 on a lake in Tenn. Has anyone ever had issues with the built-in fuel tank? Currently there is only one jib halyard and one main halyard, both exiting the mast base on the starboard side. There are two additional line exits on the port side of the mast base, and I would like to add a spinnaker halyard and a topping lift. I assume there are extra masthead sheaves to accomodate both? How difficult would it be to feed the new lines from a bosun's chair at the masthead? Anything in particular I should know about this model? I have owned lots of sailboats, but this is my first Hunter.