Unforgettable: The Nat King Cole Story - 1996 Original London Cast

I have seen this show on eBay and am wondering if this is too expensive a price to pay. I have been looking and cannot see any other references to this show on the internet. In fact this is the first site where I have seen a mention of this. I saw this show many years ago (can it really be 1996?!) and whilst it wasn't brilliant it was memorable for Clarke Peters performance.

http://www.ebay.co.uk/itm/261625730009?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

Does anyone know where else this is available for sale?

Thank you.