We made it an own route around it. I suggest that you do the same.
It's more... genuine
PS: do you have all the map codes? If so, you only have to make yourself a mental sketch of the cave and go with the GM and pick the coordinates
PS2: if you want to know our idea, we have 4 KR for 4 "mini" bosses (the 4 floors which are the same, but the door in a different wall), then there's the maze, where you can exit to a KR (the one with the altar) or to the other KR (the other with another altar, but that KR it's bigger).