David:
Well, let me reply to your question with another question: How difficult is it to remove the upper part of the steering column shroud? I have had the lower piece off a number of times - that's a piece of cake. But the upper seems to have the ignition switch built into it - is it hard to get it all apart?
I was looking at my shroud the other day, and considering doing this same operation. My black paint is all worn off around the key, and the sun has cooked the paint off the top as well.
Wrinkle finish isn't absolutely correct - the finish on mine is more of a "spatter finish", but wrinkle would look better than part paint, part raw aluminum!
For what it's worth, I use Primos Powercoating on Gothard in Huntington Beach. They do good work, but don't seem that organized - not sure I would be comfortable shipping parts to them.