I have been using a 10 wheeler with a 22 foot bed for a tender. I normaly haul 1 1500 gallon water tank, 4 chemical bulk tanks. I dont remeber what they hold, 250 gallon, may be more. Skid of ams or citron for the surfactant, plus 5 gollon boxes of other stuff. And transfer pump and mixing tank. So the truck is crowded and with the water tank to the front it puts a lot of weight on the front axle. So the ? is. I was looking for a flat bed trailer, But got to thinking of a van body. I was thinking of using 2 maybe 3 1500 gallon water tanks, I have 2 1500 gallon uprite tanks all ready. I think they would need slid to the front of the vanbody and if I did that how would I plumb the water tanks to fill and pull out of, no room along side walls for the hoses. Has somebody done this and if you did how did you sit it up. Using a flatbed would be easy to set up with the water tanks at each end and the bulk tanks and pump in the middle. By the way I spray with a 1961 4010 JD