ive seen you setup slump and i like the way you have the reels on the roof going through the side door, unfortuantly, there isnt enough room in my van to do that as my tank is to tall, so i have to go the way ive got it, but its good as i can lock the doors, so i have to disconnect the pole if im traveling a distance between houses, but it isnt a big problem. i use an aqua dapter too, so it jsut a case of plugging the hose on walk to window, extend pole, pull the hose water comes on and away i go.
if change my van in the future i think i may look to go down your route as it will allow for more sapce in the back of the van.