meadhall,
I would try El Paso Saddlery. I believe that the holster you would be looking for is called the "Tortilla". They are excellent people to work with, and their work is top notch.
www.epsaddlery.com
Above is their website. It's worthwhile to check it out and see if you like what they have to offer.
Just my .02
Good Luck,
Ray C.
