Tried a quick search and came up with nothing. I guess the board is considered old now, and nobody stocks it, so an alternative suggestion.
I recently bought a second hand KT7 off ebay (really cheap!) and guaranteed by the seller to work. I am pleased to say, it came exactly as described and promised, and I have been using it on one of my experimental machines without drama ever since. Providing you read the description carefully, and only buy one that is guaranteed to work, it may be an answer to your problem.