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Many of us use Mouser.com or Digikey.com for sources of components. Mouser out of TX, seems to be the highest level of CS..., for me. DigiKey is also very reliable. Sometimes one vendor will have items the other does not - or better prices..., it is time-consuming research, and both sites have "specifier" wizards..., for dimensions, type, voltage, etc., to narrow down the possibilities in their inventor.
Welcome to the site! Post a thread on your restoration..., with pictures, of course! many here will chime in with helpful guidance.