Update, I am missing pictures. I did upgrade the lighting to 14 volt bulbs. It was very simple. Jut feed two wires from each of the electrical clips wrapping them around the center pole to the light housings, The connect the a wire to two opposite polarities. The center rail powered housings were connected to the common clip and the common housings were connected to the center rail clip (the center rod connection).
It was noticeable with the extra wires showing but it all depends on your personal preference.