A band mate bought one as a mid week accomodation a few years back less thasn 6 figures with a mooring, (about £6k a year I think) . . . not cheap, but a fraction of the price of a shoe box flat. and a great location
I have a LHD classic car, which is particularly nice to drive on the Continent . . . . . when we went to LeMans/Spa etc in our old bus I didn't really have an issue with it being RHD . . . . The Iveco is a proper commercial vehicle underneath so had decent big mirrors and reversing camera . . ...
layout makes a huge difference to your experience of living in a coinfined space ( as does weather!)
I'd look here, or similar and hire a few before diving in, theyre a big investment.
https://landcruise.uk.com/
one thing I hate is having to build a bloody bed every evening . . . .
We had a small self converted camper for racing, out grew it and got LAika like this
https://www.youtube.com/watch?v=sNvzbYnPXvo
it was a beast, went well, towed a race car/trailer . . ahd all the bells and whistles, air con, proper bog, shower, cooker, oven . . . but it was a big beast and...