I did a lot of work on mine but didn't go into much detail in my build thread. After the fiberglass work was done I sprayed it with raptor liner using a schutz gun. Texture may not be exact but I like the look of it and not many ppl would know the difference without two setting next to each other. I don't have a close up of the texture but this was what it looked like after fixing all the sags that are common with a double wall top.
http://67-72chevytrucks.com/vboard/s...=736217&page=3