Tomorrow I'm getting possession of a 23.5 in very good condition but not perfect, so I'm planning to do several things and I need suggestions from you veterans.1. Bottom paint needs redone. I plan to keep the boat on the trailer after each use. Is the idea of removing the paint and leaving the original gel coat exposed sound? If paint is a must, what paint is best?2. There is a water leak in one window. Is it OK sealing it with bathtub caulking? How to do it?3. The springs and axle of the trailer are rusted. Where can I find replacements?4. The centerboard would take paint. What is the best way of doing this? Same thing for the rudder.5. The external valve of the water ballast is encrusted with mud looking stuff. How to clean it? There is a need to clean the water ballast tank?6. I need an Owners manual and probably to buy parts for this boat. I have been unable to find a Hunter site that offer these things. Is there one?7. Is there a hot line number or site for Hunter customer support?Any information will be greatly appreciated.Thanks,Mauro.