Thanks for the info, Jan! I forgot to mention in my OP that I did indeed write to them for information. Also, we'll have the vaccine QR ready.
Regarding EBSH: a combination of friends wanting to fly over the Ardennes on our way there, and the availability of car rental nearby. Also, definitely not afraid of grass strips, but with the possibility of marginal VMC, and a different environment, I do feel more comfortable with a big slab of asphalt to spot from the air.
