I am thinking there has to be SOMEONE near you that you can set up a playdate with to see how Mitzi will be with another yorkie. I would try a full grown adult, not a baby to start.
You could even put up a new thread that says: "I NEED TO BORROW YOUR YORKIE! Anyone live near me?" And in the message explain what you need!
Good luck! If you CAN get a baby, you eill enjoy it SO MUCH!!!
