Lloyd - First, I found the reproductions clips to be way off, so I returned the lot . I tried several different finishes, including Dykem Steel Blue. While not perfect and probably not the right material, I found Testors Transparent Blue to be the closest to the factory finish for the clips:
Original Clip:
Refinished Clip:
All the clips:
Used this product - just a light dusting is all it takes:
I'm out this weekend, but when I return, I'll upload an image with the clips installed.