The may restrict based on passport and eVisa website location. That should not be be a huge problem. Just hop into the home country plane and apply at home country. This is 21st century people.
Are you reading all the posts regarding DTV. I never read a post that asked pay for pay checks and job duration. Why don't you apply and pick an embassy and find out for yourself.
Try Krungsri Bank at the Central. You can also use your ATM cards and credit cards for all purchases. I now exclusively use US ATM cards for cash and US credit cards for all purchases.
You may have tax liability if you become a tax resident. Initially 100% people will ignore and immediately become tax cheats. A few good souls will debate endlessly about double taxation treaties and why they don't have to pay anything, thereby becoming criminals.