for Rolfy and Jan ....
...your travel plan sounds ok.
Or, we could go on the Harwich to Hamburg (Cuxhaven)on the excellent DFDS overnight ferry, more like a cruise liner, head due south to the site, with maybe Iris meeting us off of the ferry.
Obviously I would need to pick up my other half, Andrea, :k at some point!, but she don't live too far off this route.
If you decide to go your proposed route, we would meet you at the site. Between now and then, I'm pretty sure a hotel or something will be found, actually going to be down that way in about three weeks.
Catch you later
Mike