Location is a significant factor in pricing, selling in a slug zone will bring more than selling in a rifle zone. I live on the border of the rifle/slug zone and a change of 20 miles will alter the selling price 20-25%.
I have an exact set up similar to yours I've considered selling for the last few years. Selling prices seem to be steady in the $200 range if scoped with something cheap like Simmons/Tasco/Barska/et al and about $160-$180 if not scoped.
