Good post Joey.
I recently read a very detailed article about the whole Lufthansa heist from Crimelibrary.com. A real good read and that Jimmy Burke loved his killing. Also I read that Conway was used for Goodfellas instead of Burke because he was still alive in prison and probably couldn't get the permission to use his real name. The same applied to Vario. I don't know why Desimmone wasn't used instead of DeVito though.