Well i kinda live in this part of the world
Dusseldorf ain't that far away
They send me onsite to a customer for an install, and i'll just drive up there , do what needs to be done and get back in one day...
Mind you, that would be a long day, but still doable.
If you guys want , weekend of 15th june , be happy to throw a BBQ and show you round Ypres Salient..