Why doesn't the breeder have official papers and registered pedigrees for the breeding dogs? At the bare MINIMUM, the breeding pair should have hips/elbows certified and need to be registered with your country's official breed registry. Personally, I think breeding dogs should have working titles or certifications, conformation ratings as well. If I were you, I would find a breeder with knowledge and expertise with the breed. Someone that understands the breed and can find a suitable match for your particular needs.