I'm also very exited to have found one, and I'm really eager to get it home, have a closer look at it and get it cleaned up. At the moment it's standing at my father in-law until I have somewhere to put it at my mom's house where (most of) my collection still is. I'm in the middle of renovating the utility room in her house, so the house is quite a mess at the moment and not really ideal to store even more stuff in.
Can't wait to have my own house one day and be able to have my collection on display. The black 4401 will definitely get a place of honor together with my silver 4401.
Btw. for some reason I seemed to remember that the protope Beocord reel-to-reel for the Beosystem 6000 was named Beocord 6000, but looking at a picture I took of the one at Struer Museum, I realized that it was in fact named Beocord 5000. Still strange that they continued with that when making the Beocord 5000 casette deck even after making a preproduction run where the units were named Beocord 6000. Made a quick search on 'Beocord 5000 reel-to-reel' and found this: