I hunted that unit 3 years ago. Some very nice antelope in it. I camped in my F-150 so I was able to just pull off and camp on BLM land. I hunted only the SE section of 74 and some of the blm roads could be a little rough for a camper rig. The main roads were good as long as there not wet. Maybe take the camper off the truck and do your scouting without it or get some camping gear from your relative and rent a 4x4.