There is no book like KKB for used bows. Post what you have or are looking at and all the add ons and I'm sure people will give you an idea of what there selling for.
Honestly, if you are looking for the value of a used compound it isn't a lot unless it's a year or two old, even then figure 50% or less of retail.
I normally check eBay first to see what similar are selling for, figure about $100 in fees on eBay so most sell for less locally or on forum classifieds. Shipping will also cost about $30
Thanks guys. I'll take a look. I'm in a spot that is game rich but my body is rejecting the idea of me pulling a draw weight high enough to insure a clean kill. If I can't sell it in the next week or so, I'll list it here. Have to put my time in and be active before I get the permisions to post in the classifieds.