John G., I think $2500 is way low. If you do a quick Google search just between gunsamerica and gunbroker average selling price is $3350 up to $3700. If the gun is 98%, cased, factory chokes, factory release, factory adjustable rib and so on I would say $3400-3500 would be a fair price. Hard to find a 98% gun!!!
I've been looking for a nice KS-5 or Special for my dad for a couple weeks, and from the options I've had thus far, I think Rick is spot on for pricing. There are nice Specials to be found for well under the 3K mark, and some not so nice ones too!