Don't waste your money getting it processed - you'll lose a lot of the meat, organs, and bone that is appropriate for dog food. For example, you can feed a whole head - all wasted if you went to a processor. With that said, don't feed brain or spine if you're in a CWD area.
Processing is super easy for dogs. Hack up everything into 1 pound or 1/2 pound pieces depending on your dogs' sizes. Feed the organs too. Cut intestines into short lengths and dump the contents. Don't try to hard to clean them. Dogs eat poop. And stomach contents of ruminants is a good source of vitamin E. Feed the bones also, they are ESSENTIAL to maintain a calcium/phosphorus balance. A dog can get very, very sick if you feed raw meat and organs without including raw bone. Weight-bearing bones are not part of the diet, but recreational chews. For safety, keep the bones wrapped - moist. When they dry out, they aren't safe for dogs to chew on anymore.