Z1 KZ1000 tuning books?

Has anyone seen these books before? (check out the other ones at the bottom of the page of this link too)
These books look really cool, but I can only find them written in Japanese... Was just wondering if anyone knows of any books like this that are actually written in English!

www.japan-dream-direct.com/product/149

There's a forum member at www.kawasakimotorcycle.org named "Kopcicle" that might know where you can get this book. He's got a lot of experiance on the older Z1's,Kz900's,and "J" engined bikes.

The Japanese are way ahead of the English-speaking world when it comes to books on Kawasaki's. I actually own a few of these (expensive, but the photos are wonderful). The closest comparable English-language ones are by Micky Hesse and Dave Marsden and both are out-of-print...still available on eBay occasionally, but sought after.