Well, there's Fuji Crystal Archive, and there's Fuji Crystal Archive. The choice is yours.
Seriously, there are "dealers" that cut and repackage the Kodak paper. I've heard mixed reviews, so you're on your own there.
Doesn't Arista make a color paper in sheets?
Anways, I'm getting good results from the Fuji paper in the Kodak RA/RT chemicals. I'm processing at 94F in drums.