I also tow a Jeep -- a 2000 TJ model. You asked about lights, and I choose to do a magnetic light kit from etrailer. I prefered not to splice into the wiring, as these allowed me to wire to the front 6 pin connector I put on my Jeep.
When I hit the brakes on the motorhome, not only do these magnetic lights light up, but my Invisibrake activates. When not in use, I move the lights to the inside of the Jeep behind back seat.
Check out etrailer (i'm an actual customer!) and give their tech's a call -- they are really good an giving you options, and yes, there are many for Jeeps between tow bars, braking systems, and lights. I installed my system myself over the course of 2 weekends, and yes, it was daunting at first. But logical. Or, you can have it all installed.
Lastly, I used the Curt tow bar that mounted right to my front bumper. Might not work on your JKU. Reason I went with it is price. I have towed over 4,500 miles so far and all is well with the bar.
I used TL21RK lights. Link to all lights below.
etrailer tow lightsI used RM-8700 roadmaster invisibrake. Link to all brake systems below.
etrailer Braking systemsI used Curt C19745 model tow bar. Link to all tow bars below.
etrailer Tow Bars