Old Exhaust Manifolds or Headers

Hi guys,
I’ll be building a 416 stroker soon and I ordered a nice shiny new set of TTI ceramic coated headers for it. However, TTI recommend that I use an old set of manifolds or headers for the first engine run/cam break in to avoid wrecking the new ones. Anyone in NC got an old set laying around that you want to get rid of?
Thanks, Bob