Wow, that is one heck of a deal. I can't count how much time I spent trying to fix mine, I would have paid double that to get my time back.
I was mostly done by the time I found him, he said he has them made up in advance, and I guess they go up onto the roof about 1/4 inch or so if I remember correctly. I still need to get the mold rivets and the adapter for my stud welder so I can weld them on my car.