The Story of the Unreleased Hyper Neo Geo 64 Console 

Such a shame this never made it out, it would have been a beast and no doubt killed the competition for fighting games.

I am in desperate search of any of the hyper neo arcade machines working any clue where to start looking?

Supposedly the processor in the hyper Neo Geo 64 was similar to that in the N64. Shame Nintendo and SNK didn't make a deal at this time. Clearly SNK wasn't going anywhere with the hype Neo Geo as a home system and the N64 was sorely lacking fighting and racing games, both of which were available on the hyper 64