Why are you waiting to get your marriage registered in Thailand, do it as soon as possible in case there is a delay and you miss your Visa application date
Doing the 65k as three separate deposits within the month will be accepted but there is a risk that one may not go through or be delayed a few days and get deposited on or after the first of the next month which means you did not meet the requirements. Multiple small transfers will often be more expensive than one bigger transfer per month so, unless you are transferring your weekly income, I cannot see any benefits in doing it this way.