if your renting a small condo then that condo is probably set up for a single or 2 person family. Like someone mentioned it makes no sense to cook for yourself. In fact it will cost you more to cook in then eat out. Same goes for laundry. Get a large wash bucket and drying rack if you must do it yourself. That what most Thais do. If you want a washing machine go to laundry mat and do it yourself. You’ll need to park the US type housing and lifestyle at the airport when you arrive. That’s western style living is available here but you will be paying western prices (that includes food).
not sure what you mean here but anything you made in the UK that you didn’t pay tax, and then bring those fund untoThailand would be taxable. Chances of them trying to grab it is another thing.
pretty simple. Just know the difference between pre and post tax funds. If you have already paid tax on the money coming into Thailand then its non taxable. Once the money is in the Thai bank and you buy stock or something you buy and then sell any profit (after expenses) would be taxable).