69 340 exhaust heat shield

I am getting ready to build a 69 340 for a friends 69 Dart. It is all number matching and leaving the stock exhaust manifolds on it. There are heat shields that cover the manifolds and go on just like a gasket would. Are these actually gaskets and does anyone reproduce them. The ones I have are intact but are showing there age. Also it appears to have been painted Turqoise what is the best paint to use that will hold up. Or does someone have a paint code that I can go and get some mixed up. I would rather use a HVLP spray gun and make it look better and more durable. That is what I normally use, I really don't like to use spray paint.