Well, fortunately or unfortunately (depending on how you look at it), I have changed my plans and my destination, and will be going to look at something else tomorrow.
The arrangement I had set up turned out to be too expensive and too much hassle. Advertised as $650 euro but really costs $900. Niiiice.
So my new destination is Kaiserslautern, and if I pay them I can bring my stuff right in. However, I am not sure when my DSL will go on, that, I have to check. So I might be down for a day, or two, or three. But don't despair, where there is a will, there is an internet cafe!