how to clean gauge faces?

I ordered a set of white guage decals. But, Unfortuately it had a 120 mph speedometer and I have a 66 cuda formula s with a 150 mph speedo. So I never used them. It would be cool to have the vacuum performance indicator instead of the tach.I repainted my guage needles with flourecent orange paint.It came out pretty good. I had to get the speedo repaired it cost me $180.00. When he rebuilt it he re did the numbers on it. It looks like brand new. I had to repaint the housing also because it looked terrible so I painted it black hammered color from rustoleum. it looks pretty good now. This car had sat for 20+ years and it's like an onion. Everytime you peel back a segment there's another segment.