US Immigration from Bolivia

My husband's I-485 was denied on May 28th and we decided to move forward with both an I-290B (motion to reopen) as well as refiling a new I-485. We were just missing pg. 10 (the last page for additional information) of our I-864. We received an RFE to resubmit our I-864 and when uploading our RFE documents online, instead of submitting the PDF with our complete (all 10 pages) I-864, I accidentally submitted a jpg that only showed the first page. Our denial notice stated we failed to submit a complete and signed I-864 "with all pages present" as the reason for our denial. I'm preparing our I-290B for my husband (he is the applicant and is addressed in our denial notice as the person who must appeal) but I have a couple questions.

Question 1: Part 2. Item 4: Requested Nonimmigrant or Immigrant Classification

How do I answer this question? My husband came on a K-1 visa and we married and sent off his I-485 within 90 days. I can't find any information about what his requested classification is. He didn't come on a spousal visa, but do we state CR1 as his requested immigration classification or do we put the generic LPR? I also found these possible immigration classifications:

CF1Spouses, entered as fiance(e), adjustments, conditional

IF1Spouses, entered as fiance(e), adjustments

Question 2: Part 7 Additional Information

Do I leave this blank or just make reference to the brief I plan to attach as a separate letter to USCIS making our case, along with our complete I-864 originally intended to submit for our RFE. I'd also love to see a letter anyone else might have submitted. I haven't had much luck finding one on the different forums.

I'm aware most people decide to refile and don't submit a concurrent I-290B. We decided it's worth the $800 for the chance that our case may be reopened.

Thanks in advance to anyone with insight!

I applied for ITIN for both wife and daughter. Wife received after 2nd attempt. Daughter rejected.

They both arrived. Daughter received SSN in a week.

Will wife recive an SSN also?

Should I use ITIN?

After paying the $220 fee (after visa approval), how long to receive SSN and green card?

Are they mailed separately?

After my wife arrives in the US, how do we do about name change?

Embassy stated that there was an error on the I864 on Feb 1. I fixed the error and resubmitted. Asked them if it was correct. No response. How long does it take the embassy to go and change the status.

This is so frustrating.