Travis,
The starter shouldn't be too difficult to find, as it was used over many years on many vehicles. Having written that, I would first consider having my original rebuilt, if you still have it. There is one issue worth mentioning, that is there were at least two, if not three field windings available for the starter. You want the heavy duty winding installed, as it provides the most torque for overcoming "heat soak", hard turnover, after the car is run and turned off then restarted.. I fought with the problem for several years until my rebuilder told me I had the light duty winding in it. He sourced and installed the heavy winding and I haven't had an issue with hard turnover since. Check for local rebuilders, they may also have the starter if you don't have one.
Hello Group,
Does anyone have a bead on a starter for a 300G?