Ron,
You have a lot of options still.
One way is to take what's left of the original stock and build it up into a pattern that can used to have duplicated (see pic). But that requires that the head inletting of the stock be in decent shape. The rest (broken wrist, etc., can be screwed and glued back together. Short stocks can have blocks added, Bondo, etc.. I believe our member "SKB", does stock duplicating services. These types of services can now provide an extremely close "almost fit" which doesn't require a whole lot of time to get a good fit. You can also build up the stock to fit you perfectly.

Another way to go is to send the gun to the likes of Wenig for a stock that is rough shaped and "headed up".
But just buying a machined stock from some other gun's pattern will mean the stock duplicator has to leave a lot more material in the inletting, causing you more work and you don't get your dimensions either.