Thanks to Thunder Kiss. Batee.com is very basic. All you are checking for is bad soldering points or grounding.Gordon Killebrew is located in TN.USA and I invite forum members to answer my question as to how good is his publications?
US ebay offers a repair service and only one ebay trader to my knowledge will supply a remanufactured cluster.
New clusters are still available at cost upto $US3000.Certain Us ebay traders have not the courtesy of responding to your ebay emails.Obviously they donot want your business.
On Corvette Forum, in the States, I have one supplier who is prepared to help rebuilders down under. He is very ethical and reasonable with his pricing etc.