Hi!
Just a suggestion, but without an idea of the kind of route you're likely to take, it's difficult to make suggestions, especially for France. Mebbe check out http://www.themodernantiquarian.com/site/9867/france.html & http://www.themodernantiquarian.com/site/9871/spain.html
If you tell us the regions that seem possible, then some folk might be able to make recommendations more easily?
love
Moth