Join Date: Feb 2012
Location: Northwest Missouri
There are plenty of threads if you use the search. I was about to do this, but I had to go another route because of the tire carrier I was installing (or-fab).
The switch isn't difficult, just pickup the lights of choice and grommets. They can be found a big-rig shop or online or whatever. You'll want a hole saw too, or someway to make the hole. The lights are 4", but the hole has to be larger for the grommet.
For backup lights, you can get 2" white led, which I think usually are required to be in pairs to meet the DOT spec for backup lights. Those can be flush mounted in the tub like the tail lights. Also you could use a pair, or probably single "fog light" or auxiliary "driving light" mounted to the bumper somewhere.
The great thing about the classic jeep tail lights you have is they include all of the required features for the back of your vehicle. Of course they have tail, stop, and turn, which are the basics you will retain in the modification, but they also contain some things you will loose without additional changes. You've thought about the backup lights, but don't forget about the red side marker light, the license plate light, and the integrated reflectors. All these things are probably required. I cannot site code on this off the top of my head, but i think those are under a federal motor vehicle safety regulation. Whether or not they are "required" (by opinion) in your locale may vary. In some places nobody would ever notice and others you would not pass inspection. If you did you might get harrassed by law enforcement, particularly over the license plate light.
Those additional features can be regained through additional modifications. For side marker light i like the single led from Peterson (171 Piranha). You can pick up a surface mount led plate light from a truck place. There are probably some semi-flush mount lights out there for this too, but my local shop has a great surface mount model that's bright as hell. The bolt lights are a joke and fail quickly.