l have used silver on the back of headlights it works great. l have used white also. l use paint behind the lense...here is one l used white paint on..
Sand the car just a little to get the gloss off ans make it where the purple power gets under it or use the alcohol. the alcolol worked for me after a little sanding.
What kit do you tend to build over and over or have more then one of.? l have always been a fan of amts 49 ford l have built 3 so far and have anothor one planed..