Concur with John Roberts & rapidfire
That said reference seller's price; the production costs are obviously a big part of the price charged to include the builder's overhead, but in the end it is the market that settles on actual value.
Doubleguns are a niche market and values for various guns are linked to much more than simply the quality and cost of the build or similar quality guns on the market.
While I wish I could buy a new made Fox CE at the manufacturer's cost, the reality is that wish is unrealistic.