I would say $2500. for an '06 model B all original in decent condition is a good price. Usually if asking under 3k here in the U.S, the rifle has issues. Many I see for sale online have serious issues and the people selling them either don't know they have been modified or "restored" or misrepresent the fact. I am very cautious of "restored" or "refinished" rifles being offered for sale such as the 10.75X68 in NZ. I personally tend to stay away from "refinished" or "freshened up" rifles.