If it's a staggered magazine then you have a lot of options. McMillan, H&S Precision, and Bell & Carlson are just a few that make composite stocks for the pre-center feed actions. Of those my first choice would be McMillan. A bit expensive, but very top-notch composite stocks. H&S seem to be great stocks too, from what I've seen of them. B&C stocks are cheaper, but are still far better than the Savage tupperware plastic stock you've got. For hardwood or laminate you could go with Richard's Microfit stocks (www.rifle-stocks.com), or check out www.sharpshootersupply.com. They sell inletted laminate stocks. Both Richard's Microfit and SS Supply stocks will require finishing (sanding and applying your choice of wood finishing products like oil rub, polyurethane, etc...). They may also require some minor fitting and inletting for your individual action. If you're not comfortable doing any minor fitting, most gunsmiths can do it for a nominal fee.

Mike