yes it's just which ever is more convenient and can deal with it quickly for you. You tend to find all the hospitals will have the ability to sort out any test if required quickly
you will needto go to local hospital and pay them to give you the required certificate. On the evisa website there is a form that needs to be signed and stamped by GP saying you dont have any of the diseases mentioned
Do your children have thai passports as well as uk passports? If so they can enter on their thai passport so would be classed as thai and not need a TDAC, otherwise all 3 of you will need to complete the TDAC
if you look at getting a DTV you would need to apply using a soft power which means either a course in muay thai, cookery or medical treatment. Where are you staying in thailand? Easiest is muay thai from an approved gym can be 12k baht for the course but they are usually flexible about when you go so can be managed to.suite you. Have you been to thailand before. If so how often as this will determine whether you will breeze through immigration or have a little trouble
yes you can take breaks i have discussed this with a muay thai course in chiang mai and they are very flexible. I go to thailand for 2 months at a time and total 6 months in a year so discussed this with them and they said no problem 30 lessons that can be spread over what ever time suits me