I've thought about that myself, though little chance I would go over and buy a bike, then sell before I leave.
I think one thing helpful would be to find and save the various EU Valk websites, and log in and lurk and/or ask questions. (Most are in native languages, but someone will likely answer questions)
Jess, you could come out ahead if you purchase here and ship it over. You can sell it for much more over there.
I know, but that would be more work than I would be interested in.
And they won't let me wear a half helmet, so that's that.
But attending some of those parties would be fun.

Last time I drove in Germany, I got in trouble with the Air Force. It seems someone had removed the dash sticker on the old blue AMC beater they gave me (that said I was only allowed to go 55, no matter what the speed limit was, or if they even had one). What's the fun in that?
It all started when I told the motor pool chief the front end alignment was terrible on the Autobahn, and the car became nearly uncontrollable at 100mph.

I had a little trouble with the
ausgang and
ausfahrt too.