It is pretty amazing when you think of the tens of thousands, if not hundreds of thousands of GSD out there that you can post on this forum and run into someone who has a puppy from these two dogs and someone else who owns a close relative. I guess the number of people who really try to research the various lines and kennels and do their best to find a dog that would be a good match for them is much smaller. I really appreciate everyone's help and generosity.
Cliffson, thanks for the insightful comments and the benefits of your experience. Our plan would be to get a puppy and bring him home at 8-9 weeks, where he will definitely not be spending his time in a kennel. In fact, although we started our puppy search almost a month ago, we have ruled out actually getting a puppy until late May or early June, since we are planning to spend 7-8 days traveling to Portland, Oregon for our daughter's graduation from college and some sightseeing, and would not want to get a new puppy only to immediately put him in a kennel.