Is it worth getting a van off ebay which already has the tank and RO set up already in it or buying the van then getting a company e.g. the cleaning warehouse or someone to fit it out? I have a tight parking area if I park next to flat and my Xsara 4.1 metres long just does it so I think 4.5 metres would be the absolute max so that rules out certain vans or could get Vivaro or despatch and just park it in the street away from my flat complex but it would be more likely broken in to. Can you take the 40 40 RO out every evening a put in garage to stop it being nicked ? Are the long wheel base vans like it says 'longer vans'?