Say hypothetically me and my mate set off from London in a campervan on Sunday 17th May and were back in London by no later than Tuesday 16th June and took in, vaguely, the following route...

London - Paris - Poitiers - Bordeaux - Toulouse - Andorra - Barcelona (for Primavera - arrive 27th, leave 31st) - [somewhere good in between] - Monaco - Turin - Milan - Como - Lucerne - Basel - Luxembourg - Cologne - Amsterdam - Bruges - London.

We did want to visit Scandinavia too but I'm pretty sure that would be impossible in the time we have. Is the above do-able do you reckon though? Or would even that be trying to fit too much in?

Opinions / advice / recommendations of places along that sort of route to visit would be much appreciated!

Not even sure if I can get the time off work yet, but I guess it's fun to think about at least :-)