The wiring is not a concern. There are no provisions for back up lights on the trailer including wire. What ever I do will have to be wired from scratch.
The reason they were a good idea is that I KNOW they will throw light even if it become a longer task to wire properly.
The lazy side of me was looking for a led style so I would just have to wire the trailer and splice a bu light on the tow rig to my 7 way.
I was thinking of starting with something like this http://www.amazon.com/COMBINATION-DU.../dp/B002B8AUSQ
I just don't know if they will be bright enough.......