I am breeding C.O., and my dogs are both working dogs and excellent show dogs. it is possible to do both these things with a C.O. I live in an area with a lot of wolves and bears and my dogs are doing a great job as LGD. I don't seee the problem with your hot temperature, because a C.O. accept both warm and cold weather. My dogs that I use for breeding are of course healthy.
I wouldn't take away the coat, because the coat will protect the dog against the hot weather. Please remember that the dog sweats trough their tongue and their feet, not trough the coat.
I live in Norway, so it will cost you some money to get one or two of my very promising puppies.
I have been breeding C.O. for almost 10 years, 12 litters.
Please e-mail me if you are interested.