Technically it is your landlady that must do the TM30 or hotel but for some reason it is us that gets fined. It can be done online too. My immigration only requires it after I return from a different country not from a different province. But I always now use my pink card at airport and hotels now.
Can't go wrong with the FORTUNER I had to choose which way to go too. The Fourtuner is dated and needs a face lift which I think they are doing next year but probably will not even be close to opions on the Ford Everest. The biggest reason for not choosing the Fortuner was the two fold up back seats. By the way we sold a fortuner to buy the Ford Everest 3.0 V6 model which has more options first time sold in Thailand this years although made here the last 3 years. Yes parts are more for the Ford and probably are harder to come bye. I love the air conditioning seats in our model Platinum model. Love the way it drives and comfortable seats and fold down seats in the rear. But make up your own mind and do your own research.
If I were you I would move to Vietnam 20% cheaper overall with a multi 90 day visa and just visit Thailand when you do a border run. 6 months Vietnam and 6 months Thailand.