Hi,
I had the same problem years ago. I found a classic parts supplier that had dash gauge decals. I was skeptical at first about what the quality would be like but I ordered some and installed them over 10 years ago. They are great! Look original, stick down nicely and are still perfect today. Take a look at
www.fillingstation.com browse catalog for 'decals - truck gauge' Might be a good alternative for you.
