Have you shown it to a gunsmith or two to get an opinion? If they say the stock is beyound repair, which is hard to believe it could be BEYOND repair. There are some incredable adhesives out there any more.
The gun is long ago been discontinued so personally I would not spend too much replacing the stocks, you might be able to trade it in for a few bucks and get something newer. No disrespect meant, just trying to keep you from wasting money on a very old gun that you will never recoup.
