I have one - reliable and rugged as hell (don't use it for hunting though). Was given to me and I have been looking for a decent replacement stock. ATI makes a composite monte-carlo style one, but I would rather keep it as close to original as possible (its a fairly rare 1942 finnish/tikka version). Ammo is relatively easy to find (7.62 x 54R) and not too expensive.
There are several availble on GunBroker at the moment.
Check out the link below . . . best site I know:
http://7.62x54r.net/