Billycor, I have a couple questions for you that may help us help you. First, what are you looking for in a dog that leads you to be interested in a dog of East German lines? Perhaps there are dogs from other lines that would fit your bill just fine or be a better fit for what you are looking for. For instance, in looking at some of the Truehaus dogs, I do not think of them as being of East German lines. There may be a few East German dogs back in the pedigrees, but I would not consider these East German lines. Yet, Truehaus may have precisely what you are looking for.
Are you set on the breeder being located in CA, AZ, or CO or are you open to shipping? There are a few breeders of "DDR" lines up in Washington - Schraderhaus, Timberhaus, and Vom Banach. I am not aware of any breeders of East German lines in CA, AZ, or CO.