Just found out that a work collegue, who travels over from France to work, each week... has a suitable biker friendly accomodation. Kind of..
He has an old, converted Barry sheene transporter for upto 4 people, in his garden. He is also prepared for others to stay, but would need to be camping in the grounds. He is a biker, and said that there is dry storage for luggage, and tools for any running repairs to anyones bikes.
Its all explained on his website, which, handily, is here
http://www.sheenepitstop.co.uk/index.html