Interesting discussion in re: getting a wagon vs cargo van.
Typically, the cargo van will cost a little less. But for the cost difference, you get a whole lot more with a passenger wagon. Seats. Rear air conditioning vents. Rear air conditioning controls. Extra speakers. An interior. And windows.
Unless you are planning on commercial activity, you don't need a cargo van. As a person who has driven cargo vans, and love them, my major complaint is the lack of glass. I turn my head to check my blind spot, and all that I see is the inside of my van. Sure, you want to trust your mirrors. After all, when you're behind the wheel of a truck, the mirrors are all you have so you learn to trust them. The lack of insulation makes for a lot of road noise, and works against your heating and cooling system. The beauty of the van is that you get to use the entire van, with nothing getting in the way. I would hate to think about folding down my seats, then forklift loading a pallet in there. And with a van, you can comfortable drill all the holes that you want to install any and every combination of roof rack, cargo hook, spot lamp, back up camera, work light, tool box, fire extinguisher, et cetera. Ever consider having to tear out and reinstall your interior in order to run a wire? And all that steel paneling provides privacy when you discreetly abduct people. Nobody will see your victim struggling against the cable ties and duct tape. Nothing ruining your upholstery with tools, grease, and construction debris.
It all makes you think of simply buying a pickup truck, installing a ladder rack, and fabricating your own tent with tarp and bungee cords.