Stop in for a cup of coffee

Have to pull the engine to replace the headers, What body shop will want to do that? What body shop do I WANT to do that!
You are going to need to find a classic car shop that specializes in vintage cars. No modern shop will have the skills to do it right from body through mechanical.

At least in CA, there are shops that specialize in that kind of work. Most of the rest of the country has very few. I’m just talking out loud, you already know all this...