Awesome. My ex and I took off around the South West of the UK in Peugeot 406. we had a fantastic time and got the stealth camping bug. I have an LDV convoy now in construction yellow with no windows. the height is a handicap for some car parks but looking like a commercial van means I can park up anywhere and no-one knows.

I think a Berlingo is a good choice but consider kiting out a small van. Because if you insulate it you can stay warmer easier. These days LED lights can be bright with almost no power drain.