You can use any part of it or all of it, but if you wanted to crop it, the Ulmland/Hexenfall bit on the right might be good, since that's the part of it that the characters in the RPG were most involved with.
Is this suitable, or should I try to find something else?
You cannot edit it yourself, unfortunately, but I'll put it any comment you'll made.
Note that since it is on the Universe Factory queue, Monica, Tim, James and ArtOfCode can also edit it, in case I'm not around.
Due to having a few interviews on the queue, and that we try to spread them a bit, I would not expect to get it published before two weeks... so that should leave us enough time to get it corrected :)
In case you don't see me around here, don't hesitate to ping me :)