@Brian *******
be aware that if you come in that way you have less than 30 days to open the bank account and get funds transferred (as the money needs seasoned for 2 full months before applying for an extension). If you come in on a tourist visa, which can be extended for 30 days, you have 75 days to sort out banking (as you must have at least 15 days left on your stay to apply for Non-O inside the country.