During the journey home from acquiring your dog and taking the dog to the family residents the best way to ease the way is to bring some clothing or toys that have the scent of their mother. This provides comfort for the first few days away from the support system the dog has relied on.
To transport your dog you need one of a choice of dog crates.
You can ask the breeder for advice on what type of dog crates are best. When your dog crate is chosen make sure you have something of yours eg a towel that has your scent it - make sure the item is totally sanitised and has not been into any non immunized dog or other pet!
Dog Crates come in several different types. I shall expand on two different dog crates
Wire Crates
Stay cooler in hot environments
More ventilation
360 degrees view of the puppy
Can be covered with a towel to minimize distraction.
Hard Plastic Dog Crates
Have comfortable smooth floors, that can be easily arranged with bedding for raised sleeping area