Okay, you asked for my oppinion, so here I go. Let me say first that as a breeder, the whole point is to better the breed and make sure they are healthy, stable and happy.
If you really plan to pay money for these kittens, you need to understand they are not going to be quality cats. Any breeder who sells them without papers, knows they are not quality kittens. If you are truley looking for a pure breed, call some well known breeders and ask how much the PET quality ones are. I would have to say this woman is not a breeder nor does she have interest in the cats. It sounds like she is trying to make a quick buck!! There isnt a good breeder out there that would let a kitten go that early!
Point being...the pictures are of cats who meet the standard. It takes less than you think to be a champion cat. ANY pure breed cat should meet the standard set for it. If it has slight flaws, it just means it would not be good for a breeding program. If you have your heart set on these little ones, please by all means, take them out of what I think is a crappy home. They would be better off with someone who truly loves them. It is not going to matter weather or not they are Russian Blue cats because you do not have any papers or registrations. Do what you feel is right for you..