I start with the notion that a five-screw pre-16 in high-90s condition but without a box is a $3000 gun. Then you add and subtract franklins for better or lesser quality, rib width preference, original or after-market stocks, current demand in the marketplace, and so forth. I am sure you would have no trouble selling your K-32 here for a fair price. There are no auctions here, of course, but if you start a little high ($3500? $3750?) and ease your price every couple of days, you will hit the sweet spot at which someone's resistance fades and you will have a sale. Be sure to post lots of good pics when you list it.