RPM said..
Have you approached him directly with a message to voice your concerns and included Karrma in the context of it?
I have tried to report him on ebay but theoretically he is not doing anything wrong. You can try approaching him as he doesn't look like someone who will hold back with four letter words judging by the amount of BS he uses.
The only thing you can do to stop him is outbid all the others with a $5000 bid and not pay based on false/misleading item description.
I have put it here as a heads up to people who may not know what they are doing, but you can't help it some people will always get ripped off no matter how many warning signs there are. Just look at Melbourne Cup.