Squareback vs round back alternator?

If the key switch has poor connections, then I would wire a relay this way.
The other fuses could be used for headlights.
View attachment 1715891242

Thank you for the drawing. The red wire (87) from the relay going to the fuse box?
It seems the parts coming from NY this Monday already, will replace the key switch and install the ballast resistor and perform the resistance and voltage measurements.