Curt Hardcastle would and can do the work, and very good work.    Hardcastle custom machine, he also posts here, but can't recall his screen name.

i have had joe ruth in florida fix a couple of stocks that were a lot worse than that and you could not hardly tell it had been fixed. keep all of the splinters and slivers and he can put them back.  tony <><

Totally agree there are those who can repair that stock and they have several examples of allot worse and the outcomes totally amazing to me. Might actually be even  less expensive than starting from scratch. And the wood would still match exactly to the forearm if it is from the same piece of wood.

And most likely your repaired stock will cost far less than a new stock, plus fitting and finishing. And you'll retain a stock numbered to the gun.
The Stock Doctor, Dennis Smith does excellent work.

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Do yourself and that stock a favor and immediately and very gently align both halves so that the fracture closes. Then wrap it in  something like Saran Wrap and tape it securely so it can’t shift. You want to protect the thin jagged edges and ends of the fracture face. If they get broken off or chipped it causes lots of problems making an invisible repair. I’ve done a lot of this type of work and this job is pretty straight forward especially since the mating surfaces are or should be free of solvents or oil

Rick

When I say tape it I mean very securely. The Saran Wrap is there to keep tape adhesive remnants off the wood. If that break looks as clean as it appears you will be able to carefully put the two half’s back together, squeeze and barely see the fracture line. This is optimal for whoever does the repair. Those thin jagged edges must be protected and the best protection is returning the halves back to where they were or fully mated. But careful and well done taping is the key. If you’re not sure get some surgical tubing and wrap tightly. Bubble wrap would not be my suggestion except around the stock in the package.

I talked to the Stock Doctor today.  Very nice guy. He definitely CAN repair this stock BUT it’s really a wash as far as repair costs vs starting over with a Treebone 90%ter. George Peterson at Treebone sent several pics of buttstocks suitable and low and behold, he had one that could be my broken stock’s long lost brother. I’m very happy to find one that matches well enough so that I can leave the forearm alone.
Back to the Stock Dr.
This guy is at the top of his game 40+ years! He not only had a repair plan; he had two plans. He’s not just quessing and hoping that it will turn out good. He has just about run across any kind of stock repair. If this rifle had significant family history, he would be the guy.