Here's a link to a 10mm Stock for sale with what appears to be two mags....
http://forums.gunboards.com/showthread.php?387518-WTS-Saiga-74-Russian-SKS-Sako-SKy-Finn-91-30-EAA-10mm-GI-10mm-others (http://forums.gunboards.com/showthread.php?387518-WTS-Saiga-74-Russian-SKS-Sako-SKy-Finn-91-30-EAA-10mm-GI-10mm-others)
(http://i367.photobucket.com/albums/oo118/bohica762/IMG_0385.jpg)
I just posted for an FYI in case someone might be looking for one. I have no association with the seller. Moderator can delete if I am in violation of forum rules and regulations.