Yes those are 10/32 stainless 100 degree countersunk going into floating avaition style nutplates. The panel is just about the same radius as the hood opening so it will be usefull.That looks really nice. Although if those are screws, I'm guessing that getting to at least 2 of them is going to be tough with the body on.
Looks good. Another option is to make the entire panel completely removable which is what I did. I put washers as spacers on the 3/4" upper tube, and notched the panel so it slipped in between the washers. Then I used rivnuts to attach it to the inboard foot box panel. I think I have a photo or link somewhere...
I also flipped the wiper motor around and hid it in the driver side footbox and wanted to make sure I had access to it, if I ever needed to R & R it.