I've been doing some track planning for the 8 foot by 8 foot ends of the display. So far, I've got five versions, plus there were quite a few I abandoned. Attached is a possible left hand end which would allow Damo's platform idea to be included. As you can see, there are some gaps in the track, but (hopefully) these can be dealt with using the little track extenders. if they can't, then it's back to the drawing board! (I hope to set the track up after Christmas.
The blue line marks out the edge of the 8' x 8' board and the 16' x 2' board; the grid lines are 12 inches apart.