I have heard horror stories about getting a good wrinkle finish on the dash and decided to try my hand at putting the finish on a

spare glovebox cover.
The glovebox turned out quite nice (to my surprise). A testament to letting the parts bake in the Texas summer sun.
The process I used was 1) clean the surface rust of with a wire cup and angle grinder, 2) prime with sandable automotive primer and 3) let the part sit in direct sunlight for about 10 minutes before spraying the wrinkle paint.
After about 2 minutes of sitting in the sun, the wrinkles start to form. I quickly applied a second coat of paint to experiment with the finish quality, as I'd like to get as thick a finish possible for longevity's sake.
After being pleased with the results, I decided to go ahead and try the whole dash. I figure that if it doesn't turn out the way I want, I can always sand it down and try again.

It's difficult to get a good picture of the wrinkle finish but I'm pleased with the results.
I can't wait to start populating the dash with gauges and toggles, but that will be a long way down the road. At least I can wrap this up and store it away for future use.

Closeup of the middle of the dash.