In my Van Conversion site (link below) I evolved a bed which went across the rear wheels. (originally an aluminum tube folding cot with the end legs left folded up. I had to install 2x4's at the end running across the
wheel wells so the ends of the cot would be supported and everything be balanced. (but that required little more than cutting and fitting and securing with a couple screws) 30" wide and perfect bed for one and with smaller Girl friend on a weekend.
My early Vans were low roof stock vehicles. I knew I would have to conserve space and use each square foot of it wisely. The other fixture I knew I would need was a cabinet with sink & cook top and folding table. (partly to be compliant with state requirement for "house vehicle" licensing). Originally I had a large cooler believing the more Ice I had the better off I would be, but I soon realized a 36 qt was more efficient for my light traveling purposes. (and took less room)
Most of this originally was calculated for the one floor of the Van. I hadn't given much thought to building vertically but then found some "cargo hammocks" and began to string these things up across the Van. First over the bed to hold clothing. In the cardboard boxes I used under the cot I could stow bath towels and toiletries on one side and tools, spare parts, lanterns, camping tools on the other side. I could push the cooler
between the front seats as it was small enough to fit there and this left about 25 sq ft of room free. I had found a cardboard tube that was about 8" wide and 8 ft long. Then an old piece of 1/2" ply wood was cut to
fit in the tube through the center and screws held it in place. This was fit along the upper left side with metal
perf stripping that came on a roll to hold it there. Self tapping screws secured it in place and wood screws
secured it into the ply wood. I cut a plywood disk to go in the front end of the tube to seal it. This allowed storage for fishing rods and tent poles for the awnings. I had 3 awnings at one time. Front, back, and long side awning. Support poles were made of electrical conduit.
It was by learning to move stuff up off the floor in this manner with the tube and hammocks that I could
maintain some floor space. I had a couple of folding wooden/canvas Director's Chairs I could set up inside
and this stuff was held against the cabinet with bungee straps so they only took up a couple of inches of floor space each. In time I found a carpet layer who had pulled some indoor outdoor carpet out of a building
and I got some of it to lay it under my side awning. I cut it into two rolls so I could stow it in a vertical mode
when I traveled.
When I was in camp, the cooler went outdoors when I was present and any extra cardboard boxes I may
have brought some extra stuff in went out likewise. So I still had some room inside so I could prep food and eat with the mosquito nets installed on the door ways and windows.
This was a short wheel base Van in pure stock form. The ladder racks with awning on the side and the bicycle rack on the front would have prevented it being too stealthy. Likewise the vinyl louvered rear window covers
and externally mounted spare tire & cover would hinted at it being more of a "conversion Van" than a service vehicle of some business. (then there was the less expensive House Vehicle License plates in those years)
A note on license plates. A lot of people don't realize what the letters & numbers on their plates mean but the LEO's do. There are even books in print and articles that describe it. Today you will see some Police Cars
with what looks like books laying on the trunk/boot where these are electronic camera devices that can read license plates as they drive slowly through a parking lot.
In my area these vehicles creep around all night long cruising parking lots and streets where vehicles
aren't parked bumper to bumper to read licenses plates and find out if there are any stolen vehicles,
expired plates, or vehicles with warrants for the vehicle or it's owner. In time Banks will likely interact with Leo's to "skip chase" those who are behind on their payments and have left the area to run from making payments. Banks will post a database of wanted license numbers Police Dept can access. When a find is made
the Bank will call a local REPO outfit to recover the vehicle and return it to the Bank. (possibly with Police present when the vehicle is towed).