Purdie

His name and looks made me think of Ziggy Stardust. Back in the day when the dogs were pure breeds or Bitza; and who cared what they were crossed with. Why call any dog designer they are not handbags. As for fees $1500 dollars does not go far at the Vet or visits to the groomer.

Maybe Sheepdog cross poodle

Yes GSP and Vizsla in particular are very bird fixated and will love chasing birds through the bush. Look at very intelligent breeds that are easier to train to leave wild life alone. If you want a breed that is more protective perhaps an Australian cattle dog otherwise the Labrador is a good choice. Here is some good information. https://dogell.com/en/compare-dog-breeds/labrador-retriever-vs-german-shorthaired-pointer-vs-dalmatian

Consider a German Shorthaired Pointer. Agree with others about' cant go far wrong with a Labrador'

Rescue pups https://www.petrescue.com.au/listings/search/dogs?age=puppy&incompatible_with_dogs=true&interstate=true&per_page=20&size[]=30&state_id[]=3

Bernese Mountain Dog. ?

Flat Coated Retrievers,I don't know much about them. Love the look of the Curly Coats. Wirehaired Vizsla are on my want to own list. They were developed from crossing Hungarian Vizsla with German Wirehaired pointers and other breeds.

Bouvier des Flanders ,Wirehaired Vizla ,Airedale .? I don't think you can go far wrong with a big black Labrador with a deep bark. A Heeler could work but they do best when given a job to do and lots of mental activities. A bored Heeler will soon get in to mischief however if you can put in the time for formal training and are an active person then you will have a good dog. Of your list I think an Irish Wolfhound however they will wander off if not contained behind high fences. My Wolfhound cross once jumped a 7 foot fence when I went to go out without her.

Some info https://dogell.com/en/compare-dog-breeds/rhodesian-ridgeback-vs-weimaraner

Italian Spinone. ?

Gosh I did not read the entire add. When I clicked on the links it got stranger still . Gut feeling says something not right there.

Maybe look at https://www.petrescue.com.au/listings/910121

Belgian Shepherd ?

I do not bemoan the good old days;sure50 +years ago there were litters of cheap pups all over the place but many dogs were not vaccinated and wormed or even seen by a Vet. When I was young my brothers were offered free pups from friends/ colleges who,s family dog had pups. The first pup my brother gave me was free but cost my parents a lot at the Vet to get her healthy. more pups given to me by my brothers and I did my best with them only being a child at the time. Another pup given to me was a working breed that I had to re home because my home was not the best place for him. A few years on I came across a Bull Terrier at a market in the bad old days when pups could be sold at markets and pet shops. I had always wanted a Bull Terrier so handed over the money and took her home. Had her home for a few hours when I saw she had very runny poo so off to the Vet the next day. After a few weeks she was not responding to treatment and found out she had distemper. You never want to see a dog having fits it was horrific;had her put down. After that I said no more dogs but after 2 years I began reading about pedigree dogs and pretty much every dog book I could get my hand on then decided a pure breed was the go so purchased a black Cocker spaniel who I was told was fathered by a champion sire etc etc . No pedigree papers he told me didn't need them he said unless you are a registered breeder ,bs bs etc. Found out months later that the mother of my pup was not a pedigree " Had a bit of something else in her " Later find out pup has brain disorder and her life will be short. ,medication makes her like a zombie so I have her put down. Again say no more pups and get a cat. Months later a friend of a friend comes by on his motor bike carrying a pup in his jacket. I say no I do not want another dog.He asks me to bring water for the pup so I'm giving water to the pup and he takes off and leaves her. Tried to return the dog but get a frost reception from his mother who won't say where the pup is from so I kept her at least she was healthy. Now have things improved these days I would say in some ways yes people have access to a lot of information about buying pets No one can tell you what a fair price is for a pup but i can tell you A pup that is healthy happy of sound mind and temperament is worth it's weight in gold.