
You sound as if you have planned everything out really well!
When you have got everything in place, or even before, find some breeders of the breeds you like, and see if you can visit for a while, to see what the breed really ARE like to live with. This tells you so much more than photos or a book, or even we on here can.
Its possible you may decide that a puppy is too much work (and they flipping well are), if that is the case, then you can contact breeders who may have older dogs either ex show dogs they want to rehome, or pups that have been run on but dont suit their needs (might not be good enough for the ring, or might not compliment the lines they are working with, whatever).
Or you can go down the rescue route for an adult dog, there are specific breed rescues for most breeds, who tend to match up dogs to owners on a waiting list. Then there are the smaller rescues with crossbreeds, lurchers etc who foster dogs out, have a very good idea of the dogs character and temperament etc, before they are rehomed.
Em