Has anyone ever thought about using the solar blankets on the roof of the pup? I use them, and love them, one the bunk ends, but thought about finding a way to use them on the roof as well. I just bought an old apache that has the ABS roof, and I know it will get hot, so, looking for ways to help. Two of the covers from REI would about cover the whole roof, and I feel like it would be a helpful mod..... Thoughts?