"A cover of the AOPA magazine of the era had a picture of Bullimore sitting on the hull of his yacht in the southern ocean"
Are you sure about this LS? I remember differently - TB was inside the upturned vessel and swam out when AUS navy crew banged on the hull. There was another rescue at the same time (was it Thierry Dubois?) - that skipper was standing on the upturned hull of his yacht, clinging to a rudder and knowing that if he fell asleep, he would die. I have seen a photo of that, many years ago.