So far i've done pretty good with this.
Step 1: i did was to tape it
Step 2: I used mineral spirits to clean it off from any bacteria/dirt/anything bad off of the tail light.
Step 3: I put it out on card board and started using VHT nite shade-red
This was right after a coat or two.
Step 4: I did 4 coats of the red and waited around 15-25 minutes in between each(pretty sure i should've waited longer because it's pretty cold over here)
but this was right after that
I'm getting 2000 grit paper tomorrow and i'll finish it up by smoothening it out (little fisheyes and etc.) and then i'll do the clear coat.