I came across this old SSE Construction pic and realised it shows really well how much space there is in 180top above the track (remember 180top is approx 1/3 of the Geosphere) - and also shows how much room there is on the roof of the `ceiling` from the level below. The red square on the left is staircase 11, the center red shaft is staircase 5, and the red square on the right is either staircase 10 or elevator #1. The white line is the ride path.