The only aldabra breeder I know is Greg Lindley ...
ALDABRAMAN. He is on here very rarely. The best way to get him would be to join his FB group, Tortoise Talk. He's located in South FL. There are other members in that group that breed aldabras, too. I don't remember names, but a post looking for a breeder would probably get you one.
Follow @ https://www.facebook.com/ALDABRAMANUSA
Join @ https://www.facebook.com/groups/TORTOISETALKGROUP/