I'm taking my new (to me) 2005 LWB Transit to Europe in September for a 3mth trip. It is still registered as a van and needs a few things doing with this trip in mind. Can anyone recommend water tanks for underneath it? It does not have any ventilation either - wondering about louvered vents for rear doors, but having trouble finding ones that you can shut from inside the van if needed. Figure someone on here might have some suggestions!? Thanks.