[rotorwrench]

Put a fuse kit for the starter switch buss connection terminal on there and pull the fuse out to disconnect. It may not be original but the fuse will certainly protect the cars wiring from eventual short circuits. A person could also wire it for an aircraft type resetable push pull type circuit breaker of the correct system amperage rating. This would make it easier to pull the breaker button and open the circuit for longer storage. A person would have to get creative to mount and protect it but it could be done pretty easy.

The fuse kit is less expensive than the circuit breaker for sure but either one is less expensive than a burned up car or even a burned up garage where the car may be stored.

I keep thinking I'm on the Model A Forum! Later cars already have either fuses or circuit breakers but a CDM type Klixon breaker might work as a shut off if close to the solenoid connection to the battery.