I have an issue and will take any advice. I just purchased a PC 7424XP with the XMT light swirl remover kit to work on my black 2010 Denali. I don't know if I have enough product to finish the whole vehicle or if I have the right kit. It has swirls and some scratches, some of which i feel a little grab with my nail (doesn't feel too deep). It's pretty much always windy where I live, I don't have a garage and I need help getting it clean and defect free but also I want to know how to maintain its finish when I get it there. Also will a PC get the job done? What ever advice anyone could give me would be awesome.