Andi, i know a few guys that have the same van & have had no major problems. To drive they dont feel as solid as the Ford Transit though. Depends on which Truckmount you are putting into as to if the payload is enough. You will be carrying 455 kilos of water, plus the weight of the fresh tank plus the actual TM & waste tank, plus chemicals plus wands and other tools, plus diesel for van plus your weight and anuthing else you will have in the van.
Richie.