D.A.G

I think the NVC/Embassy will address all that stuff when they send packet 3 to you guys. But if you search on google "K1 Visa Application Instructions Package (+ the name of the country)" you can usually find a copy of the instructions for the next step. But I don't think any of that stuff can be paid or scheduled until you actually recieve the info from them.
For the I-134F, are you providing the bank account info because you don't meet the 125% poverty guidelines? Only asking because: just as an FYI, you don't have to provide any additional info on that form if you DO meet the guidelines (if you make enough money). The additional info is only needed if you don't meet it and need that additional info as further proof of income/assets. If you do meet the requirements, then just your pay stubs/tax info from the past few years/letter from your employer should be fine. I meet the guidelines, and when I get to the point you're at, I'm only planning on including these things (plus, I'm printing out history from my account showing my direct deposits and balances-but I'm only doing that to provide extra info because I'd rather provide too much info than not enough lol). But of course, you can double check all of this in the forum specific to your country.
Hope this helps! Good luck!