Converting a cargo trailer.

Hello all, new here. I recently bought an old cargo trailer that i'm looking to convert. I want to get the required lighting in place so I can register and title the trailer.
The trouble I'm having is I'm confused about the light requirements. Different websites seem to have slightly different descriptions and diagrams, and none of the example images seem to match my trailer. My trailer is 80" wide at the fenders and 12 foot long.
Any advice would be really appreciated. I've looked at the examples on e-trailer and a few other websites, so it's possible i'm overthinking the lighting requirements.
https://i.imgur.com/wQPk3ya.jpg
https://i.imgur.com/EQx2SLF.jpg
The trouble I'm having is I'm confused about the light requirements. Different websites seem to have slightly different descriptions and diagrams, and none of the example images seem to match my trailer. My trailer is 80" wide at the fenders and 12 foot long.
Any advice would be really appreciated. I've looked at the examples on e-trailer and a few other websites, so it's possible i'm overthinking the lighting requirements.
https://i.imgur.com/wQPk3ya.jpg
https://i.imgur.com/EQx2SLF.jpg