Has fingers crossed... Even if they were to come back with only single units as doubleshots, and a decent price my opinion would be to still go with them just on a quality basis. If they can do the legends close to Cherry, correct colors, on nice keys that are so close to Cherry, a few blank keys would not bother me at all.
To be blunt, if using SP I have absolutely no interest in them. I would rather pay $200 for an entire Dolch PAC than have SP **** keycaps.