Price Check T3 Parts (WTK Price/Manufacturer)

Some of these are fairly obvious as being Polish or Bulgarian, but some I have no idea about. I'd love to know who made some of the ones I don't know, and what the price for them is. I got these parts a while ago and don't need them.

Bolt Carrier is a Bulgarian, and the bolt I'm pretty sure is Polish, but it looks well used, so the numbers are "readable," but hard to determine the manufacturer. Really, the dustcover is throwing me off. RSB is in amazing shape and the RS is bulgarian.

Thanks