Pete...as you know I don't have anything real to add to the paint stripping conversation as we took ours right down to glass so to speak. I assume you want to preserve as much as possible the actual factory texture. But as to GM man's post about texture replacement...here's what we did to recreate it:
http://67-72chevytrucks.com/vboard/s...&postcount=573
This post also highlights the options previously illustrated on this site that we considered. A simple search which pull up examples of all of these texture options.