Since in the interest of giving you reference points, others are giving you what they bought for what price, here is my recent experience (only a month ago).
I bought our 2004.5 Dodge CCSB 4x4, one owner, loaded except not leather, but I was fine with leather or cloth. Previous owner was older gentleman, pulling a 5th wheel with it, traded it in on new Ram truck. Arizona vehicle (no corrosion), clean carfax, with lots of professionally done add ons: Bully Dog tuner, 5" Banks exhaust, Exhaust brake, prodigy brake controller, Sprayed in bedliner, Onstar, etc. Everything works. 137K on the clock. Dealer did brakes all the way around, replaced tie rod ends, etc, all moving front end parts, and aligned it, rebuilt AC compressor, and oil change. I paid $18K. I looked for several months, and this was far and away the best condition vehicle in my target group (pre-emission Ram, 06-07 Duramax, or 7.3L Ford in a crew cab, short bed, 4x4) that wasn't insanely high priced. We just did 1100 miles in it, half of it towing. Performed perfectly. Drives excellent, everything is tight. It's a beast.
Good luck, OP!