1. No-one should buy their referral - you are playing with physical and mental health and it needs to be properly thought through. There is no going back - and no opportunity for regret. That said, clearly some countries don't have regular procedures, so someone else might be able to help.
2. There are a couple of clinics which westerners tend to use in Bangkok (Chettawut, Suporn plus a few more). Their prices are about 12,000 - 15,000 USD. (I don't remember the Thai Baht prices). Their websites are easy to find and contain a lot of information which it is good to read through. Thoroughly. Multiple times. There are a couple of others as well - but I only read up on those two in detail.
3. See 2. Normally they are the surgeon operating.
4. The Supon / Chettawut's clinic organise drivers from airport etc. Normally you have 4 days recovery in their clinic - before moving to one of their recommended hotels for further recovery. Allow at least 3-4 weeks to stay in the hotel - this is for your recovery and sanity as well as healing and post operative checkups.
There are other threads detailing recovery from both of these surgeons so read up - and chose the one you feel most comfortable with.