Joe Shiozaki of J.S. Air-Cushion (Azusa, CA) has bent some stocks for me - he uses a pair of heat lamps.
I know there are stocks he won't bend for a lot of reasons but mostly I think a lot depends on how the grain runs thru the grip.... and of course there is a limit to the amount of "bend" he can put into it.
You could call and talk to him and talk about what you need. If you send him the wood and he doesn't think he can do it safely he'll tell you and send it back but I do know there isn't any guarantee if the stock breaks when he's trying to bend it or that the bend he puts into it will stay.
Bottom line --- the plainer the wood the better chance you have to be able to bend it.
Michael Murphy can fit your gun. Jim Greenwood will do the bending. Jim's shop is upstairs above Murphy's. They are a good pair. If you know what you want done you can send your gun to Jim Greenwood and save the fitting charge. Their shop is located in Agusta Kansas.
Jim has bent a couple of stocks for me. Always with good results.