You may want to check atlanticfirearms.com. I know they carry a wide variety of AK type rifles. I used to have a Polish 1960 and while it was a solid gun it lacked a chrome lined barrel and was a bit too heavy for me while going through a 30 round magazine. If memory serves me correctly a bunker was found that contained a handful of Polish AKs and they exported the parts kits to the US. Then About Time Machining or ATM milled new receivers and CAI assembled them into complete rifles. I ended up switching back to stamped receiver AKs and now own an Arsenal SGL21-61.
To err is human, to blame someone else shows good management skills!