I went to look at a dentless repair place (in NW Calgary) and asked to see a sample of their work. It was amazing - repair looked perfect. Since yours in on the roof they will probably have to take the roof liner down a bit to get at it. Lots of hail damage in Calgary and they are busy. Originally I was considering a black vert with a few hail dents on the trucnk area and they quoted me about $10-$20 per dent but a car dealer told me they get charged about $80-$90 per dent to fix. Didn't buy that car anyway but was pleasantly surprized with the results. The car I did buy has 1 small ding in the rear and I'll get that fixed this spring. Good luck with your repair.