Bring as big as of cooler that you can and have it filled with as many frozen milk jugs as will fit. Get the hide off and the meat off the bones and get that meat on ice. Don't open the cooler unless absolutely necessary. It is a lot hotter in the high desert then you think and shade is at a...
DIY hunting for Antelope is the easiest hunt there is. Hiring an outfitter will get you good access and they will take care of all of the logistics. That being said, if you have the tag, get a BLM map and get on a high point away from a road and glass. Under most circumstances they are easy...