Living in Bangkok and assisting Thai tgs thru my foundation I am probably one of the most knowledgeable here. There are good surgeons that are used by the local thai tgs but they still have a higher percentage of problem. They dont speak english well and I understand they dont serve foreigners, especially Westerners, due to bad experience and their rudeness.
Yanhee had some promotion for srs which I wrote about, in the forum, over a year ago. At one time Yanhee was the premium hospital for cosmetic surgery, it is still the only place that does electrolysis That time they had a great offer for srs of around usd 3,000. This included a hospital stay of up to 10 days. I am not sure this is still available.
Aime Clinic, a large reputable clinic with a TG clientelle has a new srs capability with an experienced surgeon, surgery at clinic. My best friend, a Thai TG works there. Check it out and I could probably get a discount.
Other than that, its all above usd 5,000.
Piyavite Hospital has just offered srs. Check their pricing.