I imagine it goes without saying that you have a suitable car with which to tow any caravan. A safe match basically and with adequate power.
Additionally I imagine you have a driving license that qualifies you for towing the caravan you eventually choose?
Lastly depending upon how new your van will be makes a massive difference with regards to potential water ingress issues. My van has no wood in the construction save a plywood top to the floor. Consequently testing for damp other than in the upper floor is not required. There is nothing to rot.
Hi,
I have a Mercedes C-class and drive Arctic lorries for a living so I’m all good there 👍🏼
Ollie