There is no statement in the current police order that you cannot use the monthly income (transfer) method for your first 1-year extension. You can make a written appeal if you want, or follow the direction of your immigration office.
But this part, maybe I better ask
@T**
for some more information and help.
If you can meet the requirements for Non-O application there, I don't see any reason you don't get it and get SETV instead. If you entered on Non-O, you can skip one visit to Local IO.
Many people are coming on SETV to get in-country Non-O because:
- need time to settle down (permanent address, bank account, etc)
- need to secure the time of two months+ to keep the funds in the bank account before applying for a 1-year extension
Since you seem to have those already, I can't think of an advantage to getting SETV.
Coming back to Thailand on Non-O or visa-exempt entry sounds good enough for you to me.