Thanks, didn't know about the lack of 100LL at Champagne. It would be quite handy to land there because of the customs, and it is also pretty much directly between Boulougne VOR and Vitry le Francois where I am going.
If arriving at Prunay from the North would I be able to transit the Champagne Class D airspace easily? The last time I went to Prunay was from the south and I went around the class D airspace. Oh and is it open at weekends as I'll be going in on sat and out on sun?