There is good reason to be hesitant... there are so many people out to scam you these days. I would suggest that you do not buy online. Or if you do, meet the breeder, puppy and the puppies parents in person first.
If I were you, take the time to find someone locally OR find a respected person here on YT that can refer you. You can always research a breeder online to find if there is any negative information regarding them. I drove 16 hours total just to pick up my girl Mia from another YT member. Its always more comforting to be able to see the breeders home, see the parents and meet the puppy first.
__________________  Owned by Miss Mia |