A lot will depend on the year of manufacture, what year is yours?
I like to keep an eye on current prices, at least here in California and here is my best guess-timates.
2005-2009's will get you $1200-$1400, sometimes $1500 for an '09, the 09's had cleaner FSC than the previous models.
2010's to present will aver. $1500 to $1650, as they have the forged frame.
Mind you, these are California prices and each area's market may or may not bring the same value.
If it were me, I would list it not only on Gunbroker.com, but also at a site called
www.calguns.net. Californians are hungry for Dan Wessons, especially Cbob's as they are on our approved list.
Good luck with the sale.