Dunno. I doubt it's going to be that interesting in a modern exchange. It'll be mostly empty with a couple of big cabinets and that's about it these days. Possibly an extra one for the DSLAM. What would be quite neat to see is the exchange+ADSL-in-a-truck setups that BT now have for emergencies.

Imagine being the poor sod that has to wire up that thing in an emergeny