Better yet, hunt down an Apple IIgs upgrade kit board and base. Will take a while, but, you then could upgrade the enhanced //e to a IIgs ROM 01, and enhance the 1983-vintage //e at the same time. That's what happened to my original //e. Required sourcing a 1984-86 style case, but, when it was done, I had a IIgs with the old style //e keyboard.

-J