I recently picked up a WYSE PCE 900866 and I really like the smooth vintage blacks. However the keycaps are in really bad shape, shiny and sticky, almost pasty, and some of them have pretty nasty scratches. I want to replace the keycaps, any idea where I can pick up replacements for the 2.5x ctrl? I've checked SP and they don't seem to have any 2.5 keycaps in stock.
alternatively, should I try sandpapering these keycaps?