Dan, Roger Kraus in Castro Valley can sell you the tires you want, plus mount'em, balance'em and do a 4 wheel alignment -
Roger Kraus Racing Tires | Welcome! , and they are not far from you.
Another choice closer to your home is Craig Hill (Top of the Hill) in Livermore.
Of course Custom Alignment in Mt. View can do this for you as well; they're just farther away.
As I understand it, an employee from Custom Alignment started Performance Art, but I may be wrong.
Hope this helps,
Randy...