WANTED: 1967-69 Big block A body big block headers non-fender exit

Looking for a decent set of used 67-69 A body big block headers non-fender well exit. I am going to be installing a fresh 440 into my 1969 Dodge Dart in the next couple of months and would like 1 7/8"primaries into 3"collectors full length. I know where to get them new. Just looking to potentially score some restorable used ones if possible.