That's fascinating. Lord knows there are plenty of reasons that sets have to be re-imagined for tour, but this does seem off since it's a unit set with very little on the stage. The white tile set does not look that technically complex (although it could be deceptive). However, the comment with the photos about imbedding lights into the arches of the train set does sort of make sense of it. That can save a lot of time when jumping from city to city.
