I am no “pro”, but I am in the paint makes it more realistic camp. That said, you have six of them Laurie, so do a test on one to see what you think of it. JMO.? Here are a couple links to videos where a guy puts the vinyl decals right on the plastic and then clear over top.
https://youtu.be/a2gCtXEVp34
https://www.youtube.com/watch?v=8aVrQM2H6ms