Yep, good info on the Sako collectors site. It has been down but I just accessed it. You can check the "for sale" forum, enter a post of what you're looking for in the "wanted" forum, or check out the Sako medium action forum for the L579 and see if anyone there knows where to get a stock. Good luck.
Remember, many times what we view as a curse in the present turns out to be a blessing in the future. Don't worry about it a lot. Things have a way of working out. Trust me on this one. - - Uncle Bill Martino