I would call the gunsmith at Blaser USA and ask if he has any destroyed R8 stocks that could be fit to a Ragnarok stock. You can buy the stock from Euro Optics, and then ship it to Blaser to be fitted.
It is actually child's play to fit the stock, but they might not be willing to part with it directly.
I would also recommend that you watch every gun forum you can for a R8 stock. I bought a stock from a dealer in Kansas NIB for $900. As he had no parts to make it into a rifle.