This is probably my next project.
I have an Omnikey 101 in decent shape but I want to populate it with a nice set of orange Alps. So instead of de-soldering all the switches, I plan to leave them in place and pull the guts out of the switch bodies, and replace them with orange internals that I have thoroughly cleaned and inspected.
My mental debate is whether and how and with what I might lubricate them.
I am leaning towards a dry Teflon that sprays on but dries to a very thin residue.