I bought these back in 2016 and have been happy with them. They actually seemed to be of better quality and appearance than the usual reproductions of rectangular tail lights. The rubber seals were a lot better. They appear still available on Amazon. I did have to drill 2 small holes each due to centrally located mounting studs but otherwise they fit fine on the body.
https://www.amazon.com/gp/product/B0...psc=1%5B%2Fame
DOT-Legal Rectangular tail-lights