Step 1: Rear Wheel Lights
These lights are simple fog lights from Walmart for about $19 for the pair.
Locate where you want to place the lights and find a suitable place to attach them to the vehicle. It's best to try and locate a position for them at night or in a dark place to actually see how much improvement you will obtain from each position. I used a separate car battery attached to one of the lights having the light on as I tried different locations on the bus to see where I could get the best visibility and leaving the light in the least danger of road hazard.
Once I decided on a location I mounted them and wired them. There is an amber pilot light on the dash to tell me when the rear wheel backup lights are on.
These are not connected to the reverse switch so that if needed I can also turn them on while inching forward in some treacherous terrain and see that I am not driving forward into a ditch.