I know using peroxide to remove yellowing is old news at this point, but I thought this is pretty telling of what actually could be done with it. This console was the worst I've ever seen and I was amazed at just how well it turned out. I used clear liquid developer, completely submerged the casing in the sun for a day.
Before and after:
I did end up getting some minor burning on the dark gray area, I guess from leaving it in too long and decided to paint it since there was no text that would be covered.