What documents do I need for my O Visa extension at Bangkok Immigration?

Thanks in advance. I will be going to BKK immigration at the beginning of July to get my first one-year extension for my O Visa. My 90 day expires August 3. This is what they already have in their possession. 1-Copy of my one-year lease. 2- Map drawing of residence. 3-K Bank statement and 4-K Bank letter with 800,000. 5-Picture of TM30 submission. 6-TM87. Am I understanding correctly that when I go back to Immigration next week, I need a NEW TM7 and a NEW recent bank statement? If yes, then what else do I need to have with me given that they already have what I listed above in my packet. My 800,000 has not dipped below that amount since my last visit.