Hard to tell from the ad, but they don't specify if it's central locked only, or rear, or triple locked (and there are no photos of that side of the dash to see the locking mechanism). That alone can equal a significant sum if you need to add lockers for your use...or add to the resale value down the road if already there. The value is going to range widely, so the real question is, did they build the rig like you would? It's very pricey to build a lower mileage 80 series (just a stock example can run in the mid teens, plus thousands in buildout costs). Personally, it would be a non-starter for me as I need the back seats for the kiddo and dogs...but if you would be fine with a full platform like they built, it might be the rig for you. It's a seemingly fresh build...so what happened that they are selling it before ever using the winch and rarely using the accessories? Also, I always treat Craigslist prices as the buyer's starting point...no reason you can't check out the rig in person and make an offer based on what it's worth to you. I've come in thousands below asking price on many a rig and driven away with title in hand...but I've also left empty-handed more than once when the owner was stuck on a price that didn't make sense to me.