Hi there, first post to these forums. Looking for a little help!

I have a Dell AT-101 in black and wanted to restore it to it's former youth. I popped the keys off carefully, then used a little Ivory dish soap in a hot water solution, agitated all the keys in a twist-and-lock plastic container for about 10 minutes, then rinsed in a colander and let air-dry on a drying mat. I also washed the front and back of the shell. Meanwhile, I cleaned out any debris on the switch board, mostly on the metal plate that all keys sit. All in all, it came out very well!
However, I now notice that the white lettering on the black keys was not dirty but actually worn away from years of battle. Not sure how to restore the lettering, but I wouldn't mind replacing certain keys with colored keys as some have done using Rit dyeing methods. However, I don't know how the dye will affect the grey keys from AT-101W (white) models, so I would rather just find a compatible keyboard key set all in white that will fit the ALPS Bigfoot switches.
Keys I am interested in coloring: Esc,1,2,3,4,5,6 (red), WASD,Numpad 2,4,6,8 (yellow), Enter keys (blue)
If anyone knows of any list of keyboards that uses compatible keys (104-key ANSI layout), as well as any comments or recommendations, I would really appreciate it. Thanks in advance!