There's a little gunshop/police supply in Beaumont, TX called 10-32 supply. Bobby Goza owns an operates it. The guy is an amazing leathersmith. I've seen the man do everything from repairing those overpriced ladies purses, to building very unique custom holsters. In fact my first 1911 kydex holster was made by him back in the 90's before anyone even knew what kydex was. I still carry in it sometimes when I carry my Combat Commander. But leather is his specialty. He makes some fine cowboy action holsters, underarm concealment holsters, IWB's, OWB's, Hybrids, you name it. You will probably have to ship your gun to him, but your holster will fit it perfect. But if you want a complete custom carry build for the gun, you can get it all built at once off the same cow. Last time I was down that way he was making a belt, holster, and double mag pouch out of some really fancy soft french leather, with all kinds of those Texas star concho thingies. Looked like something you'd see some texas ranger wearing, it was all matched up very nice, and he was still making some other stuff on the same order for the same gun.
Anyway, here's the 800 number I found online: 1-800-262-2947
Doesn't look like he's updated his website in a while, but he's not much of an internet guy http://www.10-32supply.com/
Tell him that some Engineer from San Marcos sent you.