I'm just a little ahead of you, got my NOA2 3 weeks ago.
Waiting for case to be sent to NVC, this seems to be taking 4-8 weeks right now. I didn't account for this early on and was surprised at this delay.
Anyway, seems like NVC to get you at the "ready" stage is another 4-8 weeks.
I have decided that once we get our case number from NVC we will complete the DS160.
Next step is to pay for the visa on the ustraveldocs website, once that is done AND you are at the "ready" stage you can then schedule biometrics and interview.
Medical can be scheduled without an intverview confirmation, but you need to sign a waiver.
Seems like inverview dates are 3-4 weeks out right now. I plan to schedule then look for cancelations for an earlier date.
My fiance lives in Mindanao, so we will have to do this in two trips: biometrics/medical, then the interview.