The aluminum holding tank on our '89 Hunter 28 is leaking. Has anyone cut an access hole in the aft panel in the aft bunk? As I see it I can cut an access hole, drain and move/remove the fuel tank, remove the black tank and install a new plastic holding tank. I would love to hear of anyones experience with this on the Hunter 28. I have searched the archives and there are other options mentioned, but not cutting an access hole.I appreciate your help.