I fully understand what you are trying to achieve. My 72 Demon has a B-5 blue exterior and blue gut. The dash almost collects paper fibers if I wipe down the metal painted surfaces because it is so rough. I’ve yet in 40 years of this hobby be able to recreate that texture. It’s is almost like heavy metal flake was applied then blue flat over that. Not all dashes were like that either. I’ve owned a few one owner ABodies with all different types of coating from the factory on them. Some smooth and some rough and in between. Maybe quality control was dependent on how many beers the painter had the night before.
