I've e-mailed Don on 2 separate occasions and haven't gotten a reply. They are on his list, but the list is dated 2011. Maybe I'll try calling the number listed on his website tomorrow.
Got a 10" Gibbiceps from Dan Ye Jennings a few months ago. I just purchased Bulleri from Dan of COA. They weren't available yet, but he shipped me some anyway since I wouldn't stop begging. I'll definitely be moving some when they grow out.