Chuck,
I bought a whole pile of slitting saws from an auction a little while back. Since the chances of me using all of them are virtually nil, I'd be quite happy to send you 2-3 FOC; they're all HSS & as soon as I find them (they're around here somewhere...) I'll tell you what thicknesses I have available.
Cheers!
Ade.
PS: I can see one of them from here, but at ~6" diameter, I suspect it's a bit large for an X2!