Do not get clear diamond headlights. You do nothing but scatter lots of useless light and blind people. As indicated above, get e-code lenses.
You do not need new wiring harnesses with either 35 or 55. 55 will be brighter.
2003 TJ, 33" BFG AT, 2" BL, 2" BDS spring lift, Truck Lite headlights, Homemade sunrider top.