Well, with the A-10 that I just started, I had to pretty much add all the detail, so I used PE leftovers, some styrene and aluminum scraps to create the instruments, then I painted, drybrushed (tried a little flat aluminum, didnt' turn out well, had to repaint) then added an oil wash. Just have to try the Future for the dial/instrument face glass and it'll be done.
This is the most I've ever done for an instrument panel, and I'm happy with the results.
Pics of it are in the A-10 "What If" group build thread.
A day in the Corps is like a day on the farm; every meal is a banquet, every paycheck a fortune, every formation a parade...
The Marine Corps is a department of the Navy? Yeah...The Men's Department.