I am in need of some sandpaper and need educated in order to purchase the correct kind. I will be sanding the interior of a 1949 Chevrolet truck cab prior to painting. Normally I would use a wet or dry sandpaper with a small amount of running water to do the sanding with. With these old cabs so prone to rust I'd rather not expose the interior to any water. So, what kind of sandpaper should I purchase to do the sanding with? I know from experience that the black colored wet or dry paper just tends to clog up too quickly to use it. Please, I'm open to opinions. Thanks!