I look on GB at what actually sold.

A factory new 3914 with a starting price of $745, ended with no bids.
A 3914LS rated by the seller at 85% sold for $389.
A 3914 described as good condition with the box by the seller sold for the “Buy it now” price of $440.

Not much used is selling right now unless its something a “special” buyer wants, or is priced low. I’d put it on here and put your state in the title. A local sale is going to bring you the most money. Adding in FFL transfers and seller fees jacks the price up too high most of the time.