I have bought several stroker crankshafts and dozens of valves and pushrods for BBC's from the broom sheet. Always good stuff.
Speedways "garage sale" has always been a good source for street rod headers. I have bought many sets of dented header sets from them. Most of them have had very minimal, repairable damage. Usually in spots not even visable when mounted. On one set of "T" bucket chrome headers. I never did find the supposed damage.
Use the shipping code and really save $$