WTB Australian Shepard Blue Heeler Cross Dog

I am looking for an Australian Shepard/Blue Heeler dog.  My dog just passed on as she was getting old.  We have another heeler about 2 years old and he is very lonely and needs a companion.  We are located in West Central Minnesota but would go as far as Aberdeen, SD. My grandparent live in SD so if one was available in SD we could pick up.