the bigger issue is that the pinout of the ssk matrix is different than the pinout of the 101 matrix. further, the controller for the 101 won't necessarily cleanly mount on in the ssk case, and takes a full-size membrane pinout
basically, mixing and matching is difficult, and going wholesale 101 is also tricky. basically, membrane and controller issues can be tricky. hammer issues are easy, sure, until you realize that you have to bolt-mod just to get at those.