I have seen what you describe in the $2,000.00-2,500.00 dealer price, "list price" range. That is for a 12 gauge. Small bore would bring more. If the stock is real short expect the lower figure at best. What they ended up selling for most likely was a little less than this I suspect. NIDs just do not get the heavy buyers interest like Parkers, Smiths or even a Fox. Shooter NIDs go wanting a buyer for less than $400.00 while a Sterlingworth would be sold almost at once for that money.