Daniel, almost any well stocked gun shop will have a few SKSs around. If you want a Russian one, however, you'll have to prowl around. I don't know what state you live in but SKS rifles are pretty common. Also, you might want to check out some auctions like
auctionarms.com They have a few available and you can have them shipped to your local FFL. Look at a lot of them before you buy, however. There are so many that you can be picky. The prices are going up slowly as the quantity decreases. My SKS shoots great.
Rome