Marty : Several years ago, I had the horse on my original 67 Illuminated Grill Ornament replated. If you have ever seen one taken apart, I think you'd agree that it doesn't look too easy to do - it's a "reverse 3D" (or concave) horse. The company I had do it, did, what I feel, was a superb job, and packed it extremely well when they shipped it back to me. The Company is M & M Metalizing Sales in Westminster, CA. They have a website that shows some examples, etc. of their work.
You might want to check with them.
Bob