SuperSierra21

Hey all, So as the title states I'm trying to find and install a light bar behind the grille on my 21 Sierra. I was curious if anyone has done this before and has any pointers or tips to point me in the right direction. Ideally a solid light bar 30 - 40 inches is optimal, however fairly bright 6 inch light bars that would fit on either side of the GMC logo would work as well. Not sure what a good lumen rating would be for a light bar, but it should be sufficient to illuminate a highway at night as there are no streetlights or towns for 400 km roughly and seeing wildlife early is essential. I appreciate any assistance in advance anyone can provide.