Hi.
The first step is to install the insulation washers on both sides of the base.
Then the bulb bracket.
Then the insulator.
Next the bulb contact spring.
Followed by a bolt with a washer.
And the other bolt with a NOS dash wire and a washer.
Flip the dash base over and install the insulation washers.
Followed by washers and copper nuts.
The other side is slightly different. Again the two insulation washers have to be installed.
Then the two rivets, etc.
And I then soldered the NOS wire to the rivet.
Lastly I soldered the other wire to the switch.
This is what it looks like with the dash panel fitted, with globes and the light reflectors in place.