I wish I had pertinent info for you, Condor, but alas I don't. Only BMWs I were ever around was a buddy's back in the late 60s, it was an R65. In my 20ish mind it looked silly especially next to my Norton 750 Commando. Before I purchased my 02 RSMV (after bad experience with a HD Ultra 2000) I tried all the bikes for touring. The BMW was too tall and stiff for me. Obviously since I never had involvement with them. I did have a Maico 400 motocross though (is that European?).
I would like you to get this machine cheap and I will wait for every post you write on how it is going.
Run this by Puc since he knows the bike world.