This is a combination of things people have asked us, things we learned, and things we think might be helpful to others who might want to do such a tour in the future. If you have other questions, just let me know and we'll answer!
One sad thing about the way our trip was structured is that we didn't have a lot of time in a lot of places that we would have liked to have a lot more time.
Where were we? Ah, yes, the Hamburg Train Station at midnight on a Friday. (To be fair, at the time I had no idea it was a Friday. We pretty much never knew what day of the week it was.)