The guy on the bike is Rick Brett, one of the most knowledgable people in the world on kawasaki triples.
Here's a youtube video of the 48 cylinder bike running.
http://www.youtube.com/watch?v=6ratfuML9QA&
As an added bonus, here Rick showing PART of his personal collection
http://www.youtube.com/watch?v=mGew-2Cd8vQ
Jeff