I would recommmend without any hesitation Dr Ceirny in the Czec epublic. I went with a company called Cosmetic Bliss. They are brilliant and also include insurance to cover the cost of complications should there be any.
You have a night in a 4 star hotel and then a day full of tests including xray, scans, bloods, gastroscopy and a chat with a psychologist. After the op, you are kept in ICU for a day for close observation before being transferred back to the ward. If all is well you travel home 2 days later after they are sure you are fit to travel. The hospital is spotless and the team very good. Look them up, they have many recommendations
Good luck