Well, welcome to the Site 'BoldRZ', and thank you for both your kind comments and for registering! :)
There are a number of Hondas that use a similar mounting for the disks (bolt pitch and centre are the same, off-set may differ slightly), VTR1000 Firestorm and CBR900/929 for example, and this would give you an option to run larger diameter disks if you wish (with calliper adaptors, of course).
NSR disks are readily available though, and a post in Classifieds should hopefully see some response from either a seller, or from "someone that knows someone"... you know how it is!
Aftermarket disks are also available in the form of EBC Pro-Line.
If you continue to have difficulty tracking anything down, send me an e-mail or PM me.
Cheers,
Andy.
NSR-WORLD.COM