Hi folks. So I just bought a 1988 Sunray bowrider for $2500. I sort of went out on a limb with this one and after taking it noticed TONS of very fine cracks all over the hull. Most of these cracks are so thin I can barely feel them with my fingernail but they look terrible due to the staining and grime from being in the water. I'm really worried that I made a huge mistake based on how bad these look. Are these likely just old gel-coat cracking? The boat doesn't leak and otherwise runs great. I would really appreciate the help of some folks who know more about this stuff than I do.