It's a much worse time right now to buy an AK over, say, an AR, even WASRs are $900 unless you luck into a deal like SSGN_Doc. And the SKS for $400 up.
I don't know when the next big shipment of Saigas and WASRs will come in but it's been a while. Not that long ago Saigas were $299 and they're the real deal Russian "AKM" (after you do the conversion).
The biggest issue with assembling an AR isn't so much getting the parts together right - it's getting the right parts together.
US Army 1966-69, VFW Life Member, Retired Geek