I removed the grill too, you pretty much have to to get access to it. Wiring the lights isn't too hard, it took me a while, but I wasn't rushing it or anything. I ran the ground to the lights to the horizontal bar infront of the radiator. I mounted the relay just to the side and below the fuse box on the drivers side in the engine bay. I ran the wires to the switch through the seal with the other wires in it just to the side of the steering column.
My lights are Hella 500s, they are ok, mainly I just got them because they were cheap. They have a good beam pattern, but not the strongest mounting points, as mine have gone out of aim before.