I toured the Luberon region (including Mt. Ventoux) last September and had outstanding service from the attached company. We rented our bikes from them (carried our own luggage.) They showed up at the Avignon train station with a large van and both bikes. Helped us get all set up (we had brought our own seats and pedals and computers and they helped with the install. The gentleman who drove the van was great, and we actually ran into him on the road outside one of the towns we went through, where he lived. He stopped and chatted with us awhile, checked the bikes over, and offered to help us with anything we needed.
Even though we didn't use them for the sort of service you are proposing, they were so helpful and willing to do whatever we needed I wouldn't hesitate to recommend them for what you are proposing. If you haven't rented your bikes yet, they have fantastically well-cared for offerings. We got two Lynskey titanium race bikes, but they have more relaxed choices as well.
They have a Canadian (Paul) on staff who deals with English-speakers. Jean-Michele and Jean both speak English also, but there's a lot of pointing that goes on.
When our tour was over there sat Jean-Michele at the Avignon TGV station at the appointed hour, ready to load our bikes and wish us a speedy return to Paris. He had even kept up with my Thomson seatpost, which didn't fit the Lynskey so I had left it with him.
Perfect experience.
http://www.francebikerentals.com/Home/tabid/36/Default.aspxCheers!