CTS 450 and 450S series pots needed, uncommon values

Does anybody have a source for CTS series 450 and 450S pots in uncommon values? I can get 250K and 500K, no problem, but I also need 180K, 1 meg, 100K, and 10K.
Ideally these would be 450S pots with built-in switches but if I can just get the 450 type I can do element swaps.

Yes, I could go to the newer CTS push-pulls with 6 solder terminals but if I do that then I'll have to rebuild the whole front panel wiring/grounding scheme and I'm looking to keep it as original as possible.