Oh, I forgot to say, about punching holes...

If you don't have a punch and die set, I recommend one, because it comes in very handy.  Failing that, for making an instrument panel, if you have a set of drill bits and a pin vise, you can use that instead, to make the holes in the panel.  But a punch set is very useful.  Not only do you make the holes, but the punched-out disks can be used as well.

The sets made by originally made by Waldron and now sold by Roll Models are excellent, though I got my punch set from MicroMark, for a lower price.