Gentry makes some nice stuff. I had them put a LH -3 position safety on my Charles Daly Mauser in 35 Whelen. They just sent it back to the local smith that will be finishing the rifle up for me. I will be going to se it tonight I can't wait to shoot it. I have been working on this project for a while now.
Anyway.....Gentry may well have what you are looking for. And if not, I am sure that they could make one.