The pre-op diet isn't that strict - you can do 4 shakes per day, or you can substitute a healthy, Protein rich meal. I kind of fast-tracked since my insurance won't cover the surgery so I got the rundown ahead since I won't meet with Arianne but 1 time before the pre-op appointment.
As far as an estimate, I am self pay. I called the hospital and got a quote of about $14K but that's just an average really and it could go up or down. There are actually several charges - hospital, surgeon, anesthesiologist. Each bill separately so I had to get quotes from each and total it's about $20k.