Heat Shield Placement?

From what I'm gathering, the metal heat shield on the left side was also the gasket.
The right side was a similar metal gasket but without the heat shield extensions.
I think what I will do is use the heat shield on the left side with high temperature sealant and no other gasket and use a gasket on the right side.

The coating I used on the manifolds is Seymour high temperature paint. I baked them for two hours at 425 deg to cure the paint and they look terrific. I will post the paint info and a photo of the manifolds.