Her best shot with a WLS is Dr Procter from Family By The Ton (Atlanta), he does the surgery even if the patient does not lose enough weight previous to the surgery, he also does in patients 600lbs and over.
Looking at Hamber soft food intake after tooth extraction we already know that her diet after a gastric sleeve will be ice cream, pasta and mashed potato with cheese.... but will still be fun, nonetheless , watch her stuffing her face, screaming in pain and puking it, than doing it all over again.
The only thing that will help Amber is a long-term, in-patient sitch-e-ay-tion, akin to rehab, before wls.
Slight PL: a relative is a compulsive/binge eater, a lifelong fatty like Amber. She was probably about 400 or so before her surgery. After her surgery, she took phentermine every day (ordered online). The surgery didn't stop the binges, she did lose about 70-100 lbs, had skin surgery, gained some back and stabilized at around 350 for a year or so and went back to her original weight. All within about 4 years. She didn't tell many others about the phentermine, so she told people "I don't know, the surgery just didn't work for me. Must have been done wrong. shrug"
Amber needs intense psychological treatment to curb the binges, if not, she will end up like my relative. No matter how intense the therapy is before wls, Amber will game the system, say the right things. She is a food addict, and she needs to treat it like a drug addiction. Like a 30-60 day program. I'm not sure where they do it, I remember as a kid watching late night TV, there were always ads for The Rader Institute (the woman creeping into the kitchen and staring into the fridge in the middle of the night). I'm not saying amber would actually take the initiative to do something like this (and no idea where the money would come from), I'm just saying that her control over eating isn't going to strengthen based on limited stomach capacity.