i'm from germany too and i have just ordered a unit, but not recieved it yet.
Shipping for me was 150$, (which is a good price for something that big an heavy).
Duty should be around 1.7%, which is the usual rate for 3D-printer, so ~50$.
And then the usual 19% taxes.
So in total you will have to pay ~700$ extra (150 shipping, 550 taxes).
Hope this helps you.