I'm Premier Gold traveling with my immediate family of 5 in economy, but because I had a credit, I'm on a separate PNRs for the same flights.

I've received some conflicting information from United agents, and I wondered if you can point me in the right direction on the following:

1. Bags: We'll have more than my 2 free bags, and one agent told me that the ticket counter agent will waive the fees for the others on the other PNR. Another one told me that's not true.
2. Premier Access: Lines this summer are long, and on the bags we'll need to go together to the counter if they will waive bag fees. I'm assuming we can all use the Premier Access lane, but I'm not sure if that's true.
3. Boarding Group: I'll be 1, but they'll be 3. One agent told me we can just come up together at 1. Is that true?
4. United Club: I have a UC membership. Will my family be considered "with me" for entry purposes?
5. Preferred Seating: A phone agent already allowed us to be together with a couple of us in E+ if we wanted in preferred seating, but I thought it would be good to log for future reference.

Thanks for any thoughts!