I like the thought. Was thinking more along the lines of what Corbet said- have a small shelf and receiver in back, then just shift cargo accordingly. But the dual water tank with self-adjusting pump does sound like a trick mod though. Though how much water do I really need to carry? 1 7 gallon jug seems to last us the weekend.
82 fj40, 99 uzj100, 06 gx470
05 525EXC, 01 XT225, 07 TTR90, 07 CRF50