I recently found and bought a copy of Pax Pamir from a game store in Slovakia called ludopolis. I contacted them and they were extremely helpful in arranging shipping to Australia for me. It even happened to be a copy signed by Phil Eklund.
It looks like they still have a copy available. Sorry I took the last Khyber Knives!
I found a new one and Khyber knives at a BGG store in USA! Now i just hope that there isn't much errata or card errors to wade through