((I recently finished putting my map of the place into digital form. The entirety of the fortress before the labyrinth, and the entire labyrinth to the best that my helper could wander on his own. There are three areas that are unmapped currently; the place we found [spoilers], a place inside the labyrinth itself, and the tower at the center.
If anyone happens to be in need of this map give me a shout via the forums
))