We did 6 weeks in the campervan last summer. 1 day to drive from calais to top of Denmark. Ferry from hirtshalls to Christiansand.
We loved it, can’t comment on campsites as we didnt stay on any. Depending on your thoughts there were quite a few caravans “freecamping” / at we would be considered a Motorhome aire in France.
Good was expensive but not crazy, perhaps we webt forewarned so it wasnt a shock.
We spent a lot on ferries and I imagine they are very expencive when towing. You are constantly catching them, we did 4 in one day.
Norway is amazing, lofoten was disappointingly busy compared with lots of other places but incredible and quite’ish on hilltops.
We went about 6 hours north of Tromso and across the top. It’s a long way home from there….. 3 days of driving back to calais.
Weather was a mixed bag, we were under prepared. We had everything from 30deg to 7 degrees.
We will be going back in a few years…..