GRF;
Good morning to you sir, I hope this finds you and your fine family doing well and keeping warm enough as winter sets in on our side of the medicine line.
It would appear that I'll be bucking the trend here - but I'd opine that if you are inclined to try something then at worst you'll learn it cannot in fact be done and you shouldn't do it again.
So in the vein of "it can't/shouldn't be done"...
Pre-64 Model 70 stock - fitted into a 98 Mauser with a #4 Douglas Match barrel chambered for .22-250AI.
It's now my "mule" stock for Mauser jobs actually - oh original cost of stock was $10 and it had been cut down and hacked previously so it wasn't collecting anything other than dust.
Found this S&W branded Howa short action stock at a gun show for $20 - it was broken a bit, but so what - I do a fair bit of work on the side repairing broken stocks and my standard line to folks is "please bring all the pieces you can find!"
Epoxy is stronger than any tree grown fiber in my experience. Anyway this one had lots of meat to take away and I had something very specific in mind which did in fact work out.
So short action Howa stock in the same Mauser 98 .22-250AI.
Lastly this was hanging on the wall of the shop, so an already shortened 788 stock was really reworked to fit a 722.
Anyway sir, there's just three that come to mind off the top of my head that I've reworked. In some ways it's easier than starting with a board and in some ways a bit tougher - but it absolutely CAN be done if you're so inclined.
All the best to you all this winter and Christmas season.
Dwayne