The rivets are fine Dan. The staining is good, maybe a very, very light amount more, over the top of the existing stain. Just a touch though - it will be diffused by the gloss and matt coats, so a little teeny weeny bit more will stop it fading out too much.
Far as I know, the inside canopy frames would be the interior colour, which I presume is Interior Green.
For the instrument panel, if it's not too late, paint it very dark grey, almost black - that way, the instrument dials themselves will contrast more, and really stand out, especially when glazed.