(I sell a lot of Weatherby rifles at work - we don't deal in "used" but do have access to wholesale prices, trade value ranges etc).
It does look like a Deluxe model.
There were some made in Japan and some made in Germany (plus the US). The German built models tend to go for a premium (considered "more collectible" by Wby connoisseurs), but many say the Japanese models have nicer wood.
A brand new Mk 5 Deluxe will retail (MSRP) for about 3K (although many sell for less "brand new")- the wholesale on them is (about) $2400'ish - so if you wanted to sell it/trade it to a dealer you would probably see an offer of "no better than" 2K - that may give you an idea of how to price it. (and I'm talking Canadian bucks here - are the US prices you quote "asking" or "realized" prices? - also, Weatherby Magnum calibers will have a premium over non-Wby calibers in many cases if you are seeing listings for non-wby calibers).
Of course that would depend on barrel condition, stock condition etc.
Perhaps you should ask Prophet River. They handle many Wby's, plus sell/consign "used" - they can probably give you a "realistic" estimate as to what it might realize...




























