I searched every pet shop in the tristate area for these guys over the course of three years. When finally I asked if someone could get them and was told yes, I didn't believe them. The day they were said to arrive, I swear I stared at the tank for like 20mins trying to remember every last thing I had ever read about how to distinguish them from the other similar species. The guy (different from who I asked to order) at the store even said they were called flying foxes and had never even heard of the SAE!
Finally of the three I got, one is still alive after six months, much bigger, and most certainly is a true SAE.
And now another store of the same owner near here is stocking them, and the manager promised me it will be fairly consistent.
Moral of the story - sometimes ask and ye shall receive.