https://www.amazon.com/GLOSS-BLACK-Application-Vinyl-Vehicle/dp/B078X36BX2/

its u/ki11a 's idea. One roll will do. I still have the template too. I can post if u want. After applying, theres a clear layer on top of the vinyl that comes off btw. You just gotta heat the edge with a hairdryer and it'll lift up but only do that at the end.