What you need to do first is call your local ATF office and ask for a clarification on what exactly constitutes a "bequest" in the eyes of the ATF. The Gun Control Act does not specifically state that you have to be named in a will in order for it to be considered a bequest, so they would be relying on a dictionary definition or whatever else they feel like this week. But seeing as how you weren't named in the will and your aunt is still alive, I would doubt that it would be considered a bequest.
If ATF says it is a bequest, she can send you the guns without having to go through an FFL on either end of the transaction. She would have to use UPS or FedEx (if they're handguns), although she might have a problem with FedEx, or even UPS for that matter.
If they are long guns she can use either of those services or USPS.
If it is not considered a bequest, the ONLY way for you to legally take possession of the firearms will be for her to ship them to an FFL in Georgia, unless they are long guns, in which case she could transfer them to an FFL in her state and you could go there and pick them up. Find yourself a local pawn shop that handles firearms, they would most likely handle the transaction for a nominal fee. All interstate transfers, except bequests, MUST go through an FFL.