So bad news for PBT lovers, SP currently only has the ability to sublimate on 1 space, 1.5 space and 2 space key caps so it will have to be ABS.
Good news is, with Esc keys, gamer sets, spacebars, and the actual DSA and DCS CMYK packs we should be able to get custom order color cyan, magenta, and yellow. I'll ask around for some mockups and maybe we can combine it in with a fade group buy.