I remember when I was about to buy my Ninja there were a couple advertised on Gumtree or similar website, one bike was practically new like mine, and one was the Ninja 2 which is a 48 version and more similar in build to the one pictured in that eBay link.
I also noticed that someone has posted stock pictures of a Ninja in the Member's Photos Gallery here, but hasn't posted on the forums yet.