PS - I have not tried it, but thinking about it laterally, Lille for Paris might make perfect sense.
The landing fee and parking are really cheap. There is full Customs and the train station is close, with a bus every half an hour or loads of taxis. It must be high speed service to the center of Paris. The opening hours would not preclude night flights or an early start.
My earlier suggestion was Lognes but my guess is that in a time only consideration (given you would have to stop somewhere en route to Lognes, and it would probably take as long on the train and to fly Lille Lognes) that Lille would be as quick if not quicker.
Oh yes, and Lille have Avgas, and take credit cards.