If anybody needs them, I have a new pair of '68 Barracuda tail light lenses. - Never been mounted and only one was removed from the box to inspect. I had ordered a pair of front blinker lenses and these were shipped to me by mistake. They wanted me to cover the cost of return shipping so I figured I'd be taking a loss unless I put them up for sale instead. They list out for $309.75 from RPS.
If I could get $135 plus shipping I'd break even and someone would save a bunch. I can post pics if you insist, but they are identical in every way to the ones in those links. Part #308-T.