So I be thinking to myself, "do I really need a custom skin for the mob in the dungeon?" Though the answer was "YES", of course, I still was unable to locate the file... (frigglefaggleraggle). However, I was able to get some work done on the structure. It is 50X50... decent size for a dungeon... that is, if you are planning to have rooms, hallways, etc. I'm just sayin' to be sayin'.