I say from what I have seen they usually start at $4500 for a used but still decent example with one mag in .308. Much more for a NIB or with extra mags. About $250 for a Valmet 20 or MCP 30 round .308 mag. Railed scope mounts seem to go for $450- $500. If you fluke into any of these for for less you are lucky. Stamped Valmet receivers are good, 1.5 mm thick! Most AKs are only 1mm. Milled is even better. .308 is the most common and other calibers are worth an extra premium.
They are the only real AK / RPK we can have up here. Probably the best ever made, and non restricted to boot so you can hunt with them!
I can only see their value going up as there will be no more made. I want !!!!