Enjoying your trip report brings back memories of mine I did 3 weeks ago. Bloody M20 road round half of Kent trying to find my way into the tunnel then out the other side the A16 exit blocked. I did similar route in as much as Reims first stop Besancon second Annecy for 3 nights next Castellane for 5 nights then Millau for 3 nights and home via Orleans last night had a great time hope you do to.