What is the cheapest possible configuration for a California-legal AR-15? I'm looking for a AR-15 or M4 clone and I noted that the state of CA is very picky on their assault weapons. I was wondering if anyone had a list of the cheapest parts (e.g. receivers, pistol grips, bullet box, etc.) that are at its cheapest price. I'm looking for a CA-legal AR-15 under 00 if possible, unless there is a pre-made AR-15 that a company built exclusively for California.

I'm looking to add an assault rifle to my collection of semi auto's, revolvers, and shotguns.
I don't want to spend more than 0, but I want a quality AK-47, or a clone of one.
I heard that the Yugoslavian and Romanian AK's are good, but what do you think?
I want an Ak-47 that's chambered for the 7.62 x 39 round.