I want to have a pair of derringer grips made..any maker suggestions?

I have an American Derringer model M1 that has a broken grip panel. I also have a nice knuckle of Sambar Stag antler that's too small for single action grips, but should be perfect for derringer grips. I used to have the kind of connections that could get this done, but not any more. Does anyone know somebody in the north DFW area that could//would do this?
Thanks!!
Matt