Full disclosure, this is not a bass boat... My wife and kids could not all fit on my bass boat any more now that my boys are older but we still want to all go to the lake together in the summer. So, I bought an old Sea Ray ski boat, but it needs some polishing as the blue gel coat on it is faded and chalky in places. I own a variable speed 7 inch polisher, a 6 inch dual action polisher, and a 5 inch dual action sander. I've painted a few cars and dabbled with some body work but I'm by no means knowledgeable on this sort of thing. Below are some pictures and I would appreciate some suggestions on where to start (what grit sandpaper, does it all need sanded or could we get by just polishing and buffing?) In one picture you can see where I recently removed a safety sticker that has been on since new, which gives a good comparison of the shape of the gel coat now as well as what I would like it to look like. Thanks for everyone's input.