I run 4 pro comp 110w spot lights off the front of a kargo master steel rack. There is glare involved, but nothing to keep you from seeing where you're headed (aiming is the key).
I ended up running the wires through one of the rack tubes to the back gate, in the top of the hatch, down the inside of the trim, and along the floor to my switches up front. It is a lot of wire, but I didn't need any to do any drilling, or anything to create any leaks.
I've had no problems for the 2 years they've been up.
I recommend lights on the rack for both functionality and their badass looks.
Good luck!