Neal,
I don't use hard Novas, only soft ones but have the metal bonds as well. I run thru 2-3 sets of Novas a year with all the cutting I do. Fortunately, I haven't had to replace the sintered wheels yet.
I can ship out 4 soft novas, or 2 soft and and 2 galaxy wheels. As to the jasper, what types and from where. I am prepping for the Agate Expo in Cedarburg and 1/2 of what I display must be silica so unusual agates and jaspers always works for me.
Also, any particular grit. I have 80 and 220 metal bond, 60, 280, 600, and 1200 soft novas. Let me know what you like and what types of jasper and I get a box loaded up.
Bob Johannes
The Amethyst Rose