Yeah, I worked that out the other night from the picture I have of mine.
I have yet to get it here, waiting on the post, but dye was the only other way I had thought of unless the normal versions of the board can swap the keys that fit.
There is also a Fellowes black microban split keyboard, well its not really split but the same layout, if they fit, at least the space bars would work, but I have yet to see one of them at a price I would pay.
Its a while since I read the dye thread might have to do some testing.