In NOLA, I'd go with Morey (sp?) at 10-8 Tactical. He could manage that very easily. I've seen a lot of his hand fitting, which is vastly more difficult and time consuming, and I've always been impressed.
Plus, he's hilarious.
Is he at 10-8 still? They have very little stock right now; the place is almost bare. The word is they are "restructuring."
There's also Roy Schmidt in Metairie, but I lost his number. I'm sure someone here has it. He built a lot of race guns in the day from what I understand, and he did some serious custom work on a Colt Commander for me a while back.