Niki, prayers to you about this. Abundant ice, cool running water and fragrant cool breezes to Cody in heaven.
If I ever show it will be me, only me, with my dog/s. Can barely stand leaving Orka 1/x month with his groomer. Super careful with the heat issue. Always have fresh water and a bowl, always make sure he can play in a river / lake / lagoon etc. Don't take him out in the car on a hot sunny day. Even though we have good air conditioning, just don't do it. Have over 300 trees, spend a lot of time watering to keep coolness and shade. Heat pump in house, never above 72, and he has his own Vornado fan.
And when Lynn retires we may move to upper Washington State to get more water, overcast, rain and cooler weather.
From what I've observed nobody loves my Newf like I do or observes him as closely every minute. Just how it is, so I take full responsibility.
I've watched really good handlers in the ring and admire them but would rather get that good myself than give my dog to anyone else.
Bottom line: nobody else cares as much as I do about my dog.