[dvcochran]

If you are certain about the number of poles you need and switch configuration, Radwell Intl MRO will have it. May take some work on figuration.
I use them regularly on weird/obsolute stuff like that.
Yours look like a segment switch. These are able to flip from NC to NO to get the switching as needed.

I am spitballing, but something smilar to this: Segmented rotary switch