Hey Nate,
Nice looking truck. Check with 3B (Bobb) he may be parting out one of the gazillion trucks he has around. He might have some gauges for you.
If not check out KMS in Coquitlam. They did have some parts trucks around, don't know if they have gauges in them.

A day without laughter is a day wasted- Charlie Chaplin
When wrestling a grizzly bear, you have to keep at it until the bear gets tired, not when you get tired.
1948 Chevy 2-Ton