Thankyou Robin and Max.
Robin, so the 3000 miles and 25 days was Uk to Uk? If so it makes it feasible.
Max, we have just completed 28 days in souther Sweden ( south of Mora) when we included Opland etc.some places we would return to, others not so much. Really loved Kosta and Glasrik. Visited twice, before and after Opland cos the photographic opportunities in the hot glass shops, where you are next to them pouring glass, is amazing. Really feel the heat. I decided they cannot have health and safety rules cos you just wonder up to the glass blowers.
I am going to do more research. I do wonder when some of the roads open cos of snow. Last time in Norway, late May early June, some roads closed by weather.
No trouble with biting insects this May June ( well a couple but no big deal) but I wonder if, on a longer trip the latter part of June could be a problem.
lastly the Swedish school holidays, the huge campsites we sometimes used were effective empty but the school break up mid June I I beleive the sites go crazy so want to avoid that.
Peter