I am currently looking for a 30mm Magenta Seimitsu button. I know that, at the very least, they had previously produced PS-15 buttons in magenta, and was told that they also produced it in PS-14-G. The switch does not need to be in working condition. I’d be happy to but down $10 or potentially even more for a PS-14-G. I only need one button.
e: removed the PS-15, found some.