As far as AKs go, you can buy a receiver flat, barrel and the other parts and make your own. Sites like ak-builder.com, local gun message boards and enough people to have a build party will be enough to roll your own.
AK's are hands down one of the easiest guns to builds. You can build the receiver with fairly simple shop tools, basically a vice, something square like a piece of square tube and a drill. I have built several guns in my time, but I have always been in awe at how simple and functional the AK is. Someone once told me, cleverness is when a person takes something complicated and makes it as simple as possible. The AK is an absolute embodiment of that concept.
