i just bought a used skiff and previous owner painted the bottom, obviously used no tape looks like he did it with his eyes closed. There is no base coat and the gel coat does not look like it was scuffed up prior to the 1 coat paint. Any ideas to get this off? It is chipping and worn near trailer bunks. I’ve painted a ton of bottoms and scraped them but I want to bring it back as close to original as possible.