Wiring for a Unity RV-25

[Mars Light]

Got a RV-25 in bad condition and of course the wiring +/- to the sealed beams are self made and for sure not original.
Can someone help me with this and give me some good photos. That would be great.

 

[UnityUSA]

This is a old parts sheet with 25 on it. Not sure how helpful it will be but it's the closest we have.

 

[Mars Light]

Thanks, but the important parts are not to see.
It seems that in my beacon the 2 clamps are missing. These brings the (-) from the base to each sealed beam. The (+) comes from the center with the small screw.

 

[shues]

The contacts that supply the ground to the sealed beams are very simple strips of either copper or brass: