They dont seem to sell it without a kite.
Have you tried:http://www.kitesurferstore.com/2012ZeekoKites.html
Here's their contact info: http://www.kitesurferstore.com/Contact.html
I emailed Zeeko (unfortunately have deleted the emails) but I was also asking about buying parts of the bar seperately so that may have resulted in me getting the wrong idea. I'm glad they are selling the whole bar.
I will have a look and see if I can find somewhere in the UK or europe that sells it seperately and see what the price is.
I like the design and it looks like it should be useable on a lot of kites, but it also has to be good value, otherwise people will try to make something that works like it.