Marathon Electric motor parts

Any good sources for Marathon Electric motor parts? I've got one that the centrifugal switch needs to be completely replaced, the capacitor switch contacts are pitted, the switch arm is worn, and the plastic centrifugal components are extremely worn so they aren't resetting during a stop. The model is a 5KC49PN0596AX, it's a 3/4 HP 56Y frame.

I'm wondering could I put a solid state kit on the motor? I have a similar motor with a solid state kit, it uses a coil around a reed relay which kicks out the starter capacitor via a Triac