Welcome and congrats on a great choice for a wonderful little companion. I can't help you with the breeders you listed or any recommendation in Indiana. There are recommended breeders here in Missouri and Kentucky. Maybe one of those would be close enough to make a road trip? Check out the Featured Yorkies for Sale section of the forums to find a list of their names. If you feel like making a trip to Florida, I can help you out in several weeks. Maybe a little far though.
You are wise coming here BEFORE buying your Yorkie. A little research can save a lot of potential heartache. Best of luck in your search for the right match.