Thank you Arno!
I had already finished the taillights and repaired a couple of them due to the flexible hose material melting into them in the box, but upon closer examination even the "good" ones weren't as true as I'd like. So I machined new ones out of clear Lexan and tinted styrene. Each lens is two pieces. I was able to refinish and reuse the bezels and the bulbs I already made. Two red and two amber.