Since no one has ever seen this, I suspect that a grand total of effectively zero good gunsmiths have any experience with this. My first thought too was that any number of good welders or machinists could solder this successfully. It might be a lot easier to find a good machine shop locally than a good gunsmith. It looks like, after cleanup, the locating pin should make it easy to return it to alignment. A gunsmith that is good at soldering would be the best choice, but I would trust any competent machine shop if they protect the blueing with heat paste.
|