I lived next door to a couple for many years, they bought a left hand drive diesel 4/5 berth and would do twice a year trips to France Portugal Spain. After looking to part-ex for a new one, they came to the conclusion it would be cheaper to hire rather than owning. The demountable type that fit on the back of ofull-size pick-ups are a good compromise for mobility from the campsite, but can be difficult to find in the UK. Some councils at seaside towns have height barriers, to deter motor-caravans so an official site is safer than a layby, as the scumbag element have been known to use nitrous oxide to anaesthetise the occupants while they sleep ..Bastards.
Anyway hope it works out well .