I'm not sure what I would pay for a yorkie without papers. Brutus was $1500 but I know his breeder raised the prices for boys to $2000. She doesn't breed much though and very rarely will sell a female.
Brutus has the Durrer line in him too. His Grandfather was Durrer's Why stop now. He also has a lot of Elite?
If you want to see gorgeous yorkies check out the Durrer website.
http://www.durreryorkies.com/