Sadly, the font is copyrighted to HP so I don't think we could get SP to manufacture these in Cherry MX quite so easily.
As far as material/color - SP ABS RBC for legends. GTH, GSC, and I think WFM. (Yes, the base is tricolor.)
Sadly, I don't think the really, really styling caps of the HP .. I forget which model it is, but it's got cut keycaps. You know which one I'm talking about. Also rubber dome, similar to C1405A, but even cooler.