ApachePhil, having just turned in my paperwork two days ago, I can you tell you first hand that it doesn't matter how you present your paperwork. Don't hear me to say, coffee spills and torn pages are ok. I'm saying I brought the required items on the checklist in a plain blue folder and sorted them together via paper clip. The very nice lady at the desk takes everything from you, then puts it in a Delta folder. So, any time and effort you put into a presentation is quickly destroyed the moment you walk up to the counter.
You don't need to present an NDR. They will have you sign a paper authorizing THEM to order an NDR on you.
I did make a back up copy of everything JUST in case, but never ended up using it.
If you're military, I brought my original FEF and checked out my flying records from the HARM office. The interviewer did look through them for what it's worth.
One piece of info I never saw on these boards, I presented my original passport at first, but was told it wasn't needed when I turned in my paperwork. It isn't. Turns out they use it on the SECOND day when they take your picture for your ID. So don't leave it in your hotel room like I almost did, thinking it wasn't necessary! 😄