I've got too much weight on the driver's side.
The Compressor, A Chinese Viair clone, is a Q industries Mv-50, modified to accept standard 1/4 inch NPT fittings, and is mostly for my Firestone ride rite air bag helper springs. I like Airing down my tires on washboard roads to about 32 psi and pump them back up for the asphalt. I normally keep them at 46 to 48psi. Sidewall max is 50 for a load range C 30x9.5x15.
I usually put 10 PSI more in the driver's side airbag to counteract the extra weight on that side, and only 15 and 25 Psi is needed to keep the van level front to back and side to side. 100 PSi raises the rear end over 4 inches and makes it ride harsh. But it turns very flat with more than 50psi in them. Rear passengers would find the ride less pleasant than just leaf springs. I never have rear passengers.
I also put stiffer coil springs up front. The Van handles very well for a big heavy lump. KYB gas a just shocks are a big part of that.
The wood for the bed platform is just 3/4 inch plywood, Pine or Fir, but knot free on one side, stained with minwax walnut and a couple coats of clear gloss Poly urinestain.
The front cabinets are some "blonde wood" veneer which Lowes was selling in '07 with poly on it. I was intrigued by the grain when in the store. They are trimmed with red oak, stained with walnut and covered with the same Poly. The same 1/2 inch plywood is used for the sliding underbed storage boxes. I can slide them in or out when lying in bed. They are just resting on the fake wood laminate snap together floor with stick on felt padding in between, which is just on top of some vapor barrier right on the sheet metal. No subfloor. I was unwilling to lose 1/2 inch of headroom.
To keep the boxes from sliding forward when braking I have a 15 inch long white oak wedg tapering from about 3/4 inches to 0 than when inserted locks the boxes against the wheel well storage boxes. These wedges make nice back scratchers too.
The edge of the plywood bed platform is re enforced with angle iron. The hatch of the wheel well box over the passenger side is the same distance as the span between the boxes. I use one of the pieces to extend my bed further from the back wall, which helps greatly when I have company. This piece is also reenforced with Angle iron. so much for the weight savings, but I can sit on it un re enforced from below without worry.
The Wheel well boxes are recessed a bit next to the windows. I like to sleep on my stomach and this allows my toes to dangle off the end of the bed, and works nicely as storage too. I am a little over 5'10".
I also put a second piano hinge on the bed platform so i can lift either end independently or together for easy access below
I kept the narrow Closet shorter as I keep Surfboards inside strapped to the ceiling. Big ones well over 9 feet long, and one in the mid 6 foot range. They live there. Make pretty good shelves too, for lighterweight stuff which does not matter if they get a little surfboard wax on them.
Here is my 7 gallon reliance water tank. You can see the Schrader valves for filling my Airbags. The diagonal bungees are nice to hold things against the side of the closet. you can see an Oak wedge for locking the sliding storage boxes.
I just use a 12v on off jabsco electric pump to move the water to my sink, which is behind the drivers seat. I only use it for filtered drinking water, almost never for washing, and the sink is more used for storage than as a sink, but fully functional. This pump is not self priming where I have it located( behind the fridge on the floor) I use the Compressor to pressurize my water tank to prime the water pump.
The wood around my Windows is White Oak, stained with red mahoganyor walnut, cant remember. They are actually functional and pull the conversion van windows tight to the body. Look much better than the original aluminum trim ring. The Stainless screws were a necessary Evil. The Wood along the upper frame rails is cedar. There is some oak up there too.
A bit more Oak, for the door handles:
Overall I am pretty comfy inside hanging out with my surfboards. Always room for improvements in both function and looks but for now it works.