[russcc]

The best switch is still the Cole-Hersee, now made in Mexico instead of South Boston. I make an angle bracket out of steel or aluminum and mount it in a reasonable convenient location so you can get at in hurry if need be. On the '40 its mounted on the battery box.
On a '36, some place in the engine compartment where drilling a couple 3//16th holes for mounting the angle bracket depending on whether it's a show or go car. If it's show, I don't know if they take points off for a battery switch. I would rather loose a few points than the car if I had an electrical mishap.