This is the version with Tim Roth and Steven Berkoff. It is worth seeing, but disappointingly it does not make much use of the metal frame, which is so stunning in any live performance.
It has never been officially issued, but it does crop up every so often on eBay. It is worth setting up an eBay alert for it.
There is a good amateur version on-line
http://www.iainfisher.com/berkoff/berkoff-download.htmlIt suffers from the use of a single camera from the side of the stage, but I like it.