Vintage Synth Repair

Hello everyone;

I recently got an Oberheim DX that was obviously partly cannibalized.
Surprisingly, most of the functions still work. However it lacks a few of
the drum switches (including the caps).
So I'm looking for a source for about 10 switches. I believe those are the
same as in the DMX. It would probably be possible to retrofit different
switches but naturally I would like to keep it as close as possible to the
original state.

Any ideas?

Thanks,

Malte