Driveroneuk:
Very nice… IF you have the budget. Suspect Marlow’s will be very nice when finished and could have a paint job like that and still come in at much less than half the money.Think I’d have found a way of getting cooled air delivered without that monstrous a/c unit stuck there. (in last pic).
Old mobile libraries make a good base as they usually have auxillary heating/cooling etc. built in.
I had a fridge under the bed with a drum Water.
A Windscreen washer-Pump pumped the cooled Water
in a Car-Radiator with fan in front of the Bed.
Had a Fridge which could have warmed,but didn’t used it.
Build my own Room heater from Parts i found on a Scrap Yard.
Had to improvice as i hadnt a Computer
for it but worked very well. There was just no one else who could run it 
Now,that has just one Downside.
When you retire you couldn’t travel all over Europe as in America you
could go in Winter down South and in Summer up North,
as Ferry would eat most of your Pension you get in a Year,if you would do such.