I have the 17-3 on a 1991 Dodge 2500 van that I paid 4k for. Put another 2k into upgrades (tires, shocks, etc.) Great rig for one full size guy. Bed is too small for two. I've had some nice trips with it. Great for hauling my kids and boats around too.
Ditched the portapotty. Use the space for a closet and storage, like my 2k Honda Genny. Still have the original frig. Noisy bugger but it works. I turn it off at night with little effect on the perishables.