Thanks to Google Scholar, I was able to search for the answer right away. Unfortunately, the Persea americana isn’t directly compatible with Persea borbonia, and there seems to be no compatible interstems:
http://avocadosource.com/CAS_Yearbooks/CAS_42_1958/CAS_1958_PG_102-105.pdf
The study is very old, 1958 imagine that! Here’s their compatibility chart:
