The red Esc keys will not work for sure, because they are intended for the Zero line of Filcos which use ALPS-compatible switches. You can buy blank Cherry caps from Elitekeyboards, too. If you get the blank cap set from Elite, the WSAD keys will be the same height for sure. I don't know, however, if the some of the larger caps from the blank set will fit on the Steelseries (keys like Alt, Shift, etc.); the letters will be fine, though.