First off, Welcome Adrian and Sparkadelic! Haven't spoken to either of you yet.
Next, Sparkadelic: Have you tried ebay? If not, post a "Want it Now" ad on their website. You'll have millions of sellers checking their stock or keeping an eye out for one to sell to you. Clymers is a good place to start though, as your model may be covered under a manual that doesn't have your model number listed on it, like in my case. I have an 85' Kawi 700 LTD, and so far we've not found anyone who knows of a manual specific to that model. They only manufactured mine for 2 years.
Also, if you go to
www.buykawasaki.com and enter your vin # it will tell you if it is still published or even available. If you find a good site and find what you're looking for, let us know so the rest of us with vintage bikes can check it out as well!
Good luck, hope this helps.