The milled guns have an advantage when it comes to Sec922r compliance because the trunion is an integral part of the receiver. It's just one less part that you need to replace with lower quality US versions.
Tennese Guns (865)577-1939 has milled Bulgarian AK receivers, with barrel installed, for $300. You just drop in US fire control parts and a US stock set and you're good to go.
If it's the stamped choices are Romanian, Chinese, or Egyptian, the milled Bulgarian would be the way to go.
Kalashnikov USA is advertising the "Saiga II, AK-103" for $495. This variant is the full pistol gripped AK, with muzzle brake and everything, not the typical Saiga. It would definately worth $500 to have a real Kalashnikov in standard config.