Am I a candidate for Autologous Augmentation Gluteoplasty With a Dermal Fat Flap surgery? (Photos)

I am 5'6", 125lb, 55yr, Asian. Most of the Asian has flat butt and my butt is really saggy. I searched a little but most of them had it procedure who had lost a lot of weight. Or BBL option. I need to know if I can be a candidate for Autologous Augmentation Gluteoplasty With a Dermal Fat Flap surgery or not. I am seeking a skilled doctor who has located the Los Angles area who had done many this type of surgery. I also need to know the price. Please advise.