RE: AZ hunting dogs
It really depends upon you. As long as you water your dog, the dog will be fine. It's all preference. Any dog will survive the heat just don't go overboard. Just keep the pads hard and dog well watered. With burrs, I have a setter and any burrs she gets usually fall out by themselves and if not a quick combing. We used to run dogs all day on western Moloka'i, also a dry climate with alot mesquite trees.
Better if you find someone willing to help you train a dog then finding a dog then not being able to find anyone.