Re tut's point, here are some ballpark figures for a custom SW Fox project along the lines of the gun in question:
Careworn but mechanically sound 16 ga. SW with good barrels - $1000-1500
Rustblue - $250 (Turnbull)
CCH - $250 (Turnbull)
Charcoal blue furniture - $100 (Trunbull)
Quality Restocking, including F/E and checkering - $3000-4000 (plus $600-800 for blank)
So that gets you to $5200-6900 for the project, plus shipping costs back and forth, and project delay and risk.
Of courese, you could get a nice, refurbished SW for a lot less than that, too - particularly if it has been refurbished to something closer to factory finish. Call Dave Sizemore at Sugarloaf Smoothbores and he can help you end up with a refurbished SW at close to half that price, like this one:
