Just out of curiosity, what is the difference between the standard zenki japspec to a kouki one.
If you have a close look, the kouki rear bar has an extra groove / line however no one notices this, especially if the bumpers are black.
Nick - I've never seen anyone sell one of these here in Australia however Gingernuts was selling a kouki front bar a while back. Perhaps he also has a kouki rear bar? No harm in contacting him as he's moving house and is having a sale at the moment.