On a turquoise/ivory '57 Nomad, the dash/steering wheel/garnish mldgs are turquoise. The door panels and seat covers are turquoise vinyl and black cloud cloth...

If you have photographs of the car before, during, or after restoration, we all love to see them. If you want to send the photographs to my email address, I will post them for you. OR I can give you instructions on how to post them from a website, OR from your computer...

I found the Hemmings article from 2008 on your friend's '58 Impala HT, but that was the only car-related reference I could find, and only 3 photos in it..
https://www.hemmings.com/stories/art...evrolet-impala

PS. Nomads are a little different, and more complicated, than almost any other car from it's time (due to it's uniqueness I suppose)...

Good luck on the restoration.

Gary