This is what I had. Two right hand switches (one old and one new ) + one old left hand side switch.

Decided to mount the new one and restore the right hand side switch.

The overhaul process:

Important step: Take a pictures before disassembling the parts. Note, the clip shown by the arrow is mounted the wrong way. In that position it will short the headlight high beam to GND.

Primer painting.

Black paint + text painting.

Cleaning and polishing all electrical parts:

Wires:

Lower part switch assembled:

Upper part switch assembled:

Almost done:

Mounted:

Done: Made a 9 pins connector to fit the wiring harness in the headlight.

Right side switch: