Not sure what kind of tail lights you need.
We were recently able to get two new "wedding cake" type red lenses for our 1966
Globe Trotter from this vendor. Taillightking Web Site
He also does business as AJ's Classic Lenses out of Montgomery, TX.
The lenses we needed were Reflect-O-Lite 110/150 tail light lenses and he had them in stock.
They were a bit pricey; but we really wanted to replace the cracked lens that came with our Globe Trotter -- and have a spare or two. The new lenses look great and are a perfect match/fit to the original.
We had been on a waiting list for awhile with other suppliers/vendors.