I am not affiliated with Nexus, but you really might want to check out all of the info available on their super C on the internet.
There are a number of U-tube videos that, while promoting their product, they are still full of useful information no matter what you buy. It is always good to be an informed shopper.
Their sales are factory direct so the price is what it is. I had no idea how the logistics would work for you coming from across the pond. But factory direct will probably save you $25,000 to $50,000 without doing endless shopping. They also have a good comparison between a Class A and a Class C. I found that very interesting in terms of the serviceability advantage of a Class C. The hood tilts forward giving full access to the engine compartment. Any truck stop in the country could service this type of setup.
Much better mileage with a super C versus a Class A.
For what it's worth, fresh water on a Nexus Super C Ghost is 100 gallons, gray and black are each 50 gallons, fuel is 80 gallons (2 forties), 2 A/C units and a built in generator (appears to be a Cummins diesel). You can also get automatic leveling. For me, a super C would be a pretty good choice for boondocking.
Good luck in your quest.
