Take that into consideration before anything else. Hunting and Show puppies will be more expensive than a pet puppy. If your pup is just going to lounge on the couch and play in your backyard, a pet pup will suit your purposes just fine. Now, to find a reputable breeder. Someone who really gives a rat's patoot about the integrity of the breed and the dogos that they own.
Good breeders care about the pups that they produce.
They will make sure that the parents are temperamentally and structurally healthy. All those questions go through a good breeders mind. But what should matter most is not the price, but the integrity of the breeder. A backyard breeder is just going to rip you off no matter how much or how little you paid. Get a pup from a reputable breeder, and your pup is priceless.