At Lille when youpark at Parking C the airport people come and get you and guide you through the terminal. I have never done immi or customs there but I assume they would help you out too. I dont remember having paid extra for that service. It’s possible though. It’s not a separate private handling company though.
If you want to make just a fuel-stop (and have a TOTAL card as you say), and don’t want to be charged any handling, how do you pay the landing fee? Through invoicing by mail? Seems crazy for 10 €.
Also, if you need to pass throug immigration, can you then still go without any handling? I doubt it…
Lille LFQQ has a self serve Total pump on Parking E near the aeroclub. You need the Total card though but then you get the cheapest fuel of France.
Lille has all facilities 24/7 and all approaches.
Landing fee is about 10 euro for a non- resident without handling.
No PPR.
Metz no Avgas, the other two outside Peter’s circle. 
LFJL Nancy/Metz, Basel/Mulhouse, and Luxembourg
Arne wrote:
No permanent customs at LFQA, but they might be able to get them for you.
No. Douanes, Police / Customs, Police : NIL.
LFQB do have customs with PPR (in practice PNR)
LFOK have customs w/o PPR but its limited opening hours. Check AIP and NOTAMS but beware because they do not specify different hours for winter/summer. The opening hours are specified in LT and translated into Z for the sake of AIP, but they do not say whether the Z times are for DST or not. They are a little bit outside the area the OP circled, but I have heard they have very good turn around times.
Try LFQV for example.
No permanent customs at LFQA, but they might be able to get them for you.
Customs upon request at LFJY (and a nice historic airport).
LFAY/LFAQ have customs with minor PN.
As Bosco said, target the little bigger cities and go through the AD data (the iPhone app is great for these searches).
EBKT on the NW edge of your zone has customs as per ops and gas in the sub €2 range and a great restaurant, maintenance and a hotel on site, ops hours o 19:00z. Also the strangest way to pay the landing fee (€19.00). Go to tower, and it is an A/G! It’s a Belgian thing, fill in the landing sheet, name reg address and maybe two months later you get the invoice in the post!
Not quite sure why you ask here, sine all the information is readily available.
Anyway, it’s an area with few major cities. There just aren’t any real big airports (customs, 7/7 ATS, fuel service) there. So, of you really insist on all of that, then the only one is Lille.
Ellx seems very close to your area, has fast turnaround and as far as I know also cheap avgas. Alternatively, stop a bit earlier at Colmar which is super easy and has very cheap avgas.
