Real outstanding attention to detail!,besides google where do you do most of your research before you start a build?,i find google doesn't always give the greatest pics.
Your color choice sounds like a good one,i'm on the fence about buying this kit,i'm still not liking the shape of the body,i know Revell did some tweaks,maybe your WIP will change my mind.
If you look in the Truck/Aftermarket resin section,there is a guy who has cleaned up the 69-72 grill and is going to offer it 3d printed sometime in the future.