I would go to the breeders section on YT and start a new thread saying something like 'do you know this breeder/person' and explain what you have said here.
Many dogs have been purchased online that have worked out, however many not. Sometimes you have to go with a gut feeling.
Maybe it's just me but I would like to see temperament and you can't see that in a picture.
I might mention the 'Yorkshire Terrier Club of America' website....go to breeders and I'm sure there are still many good breeders listed in North Carolina.
Good Luck
