Not sure how far you are willing to travel but Heronview Raw & Natural is my dog food supplier and they also breed Leonberger dogs and Alpacas. They are located 7692 Ashburn Road, Whitby, Ontario L1M 1L5. 905.655.5747.
www.heronviewleonbergers.com
They went to Germany for their 7 yr old male. I think he is as big as a chest freezer