Replacement key bed Kurzweil K2000

I have a K2000S that I am rebuilding for myself. Everything is complete and it is now an almost perfectly functioning K2VX clone with 64MB S-RAM. The key bed no longer transmits aftertouch and, although some may say it adds character, the white keys are far from white so I would like to replace it. Does the modern Fatar 61-key TP/9 fit it and are they available anywhere? If not, does anybody have any recommendations for “bleaching” the white keys?

Thanks in advance,