Does anyone know if there are clear tailights for 2000 g20s? And if so, where I might be able to find them.

sorry but there are none

their are some body shops that do the custom jobs...like put supra lights in integra's and stuff. They can either manufacture you a light, or they can make any light fit your car. But make sure you find someone who's good. I saw some pretty bad beef jobs in my time. I don't know anyone that I would really recommend...I'm sure turbo mag, or sports compact car has shops listed in there.