Here are the TM callout for the Mini light kit. It was never a MWO, just an additional kit that could be added to the truck. I have mainly seen the kits on trucks that came back from Germany, along with the yellow/red corner reflectors. The lollipop light is something that is used mainly on wreckers.
It consists of 2 front marker lights, and 2 rear ones, and the lollopop.
All you really need thats "special" is the mounting brakets, and they are pretty easy to fab up from some sheetmetal. The rest is the standard lights, wire and clamps and the like.
I scavenged the 2 front marker light mounts (part #3) from a 900 series cargo truck, and wiring from old harnesses I had in the shop. If you use the rubber Y's (part 26) that Saturn has, you dont need to cut and splice wiring. I wired my blinker lights to the front side markers for extra safety. Part #52 is the rear light mount bracket
NSN is 6220-01-195-9544, cost is $600+ for what Uncle Sam paid. Good luck finding a complete kit. Probably MUCH easier to find a 900 series truck with the brackets or fab your own.