Have a vintage Laser (eighty-something) with a hull is in dire need of some repair and restoration. Many scratches, a lot of gelcoat crack and two areas that looks like it has been repaired in the past. I have no problem doing the work, but not sure what products to use to fill the scratches and cracks. I gather that the final finish should be a quality marine coat of paint. Your advice is appreciated. The pictures give a pretty good idea of the hull condition. Thanks Ron