Before I made the script I used to research the current scripts about vehicle painting, paid or not, and I got from each script Ideas that I could apply on mine,
I am a developer, I dont need to take anyone’s free script because I can make a script from 0 , if you do not know me, now you know.
My researches only gave me ideas, the coding part I can do on my own lol
If you are talking about the script to look the same, then let’s talk about all food scripts, they all same, but doesn’t mean that everyone using others codes
and pls check this 
[FREE] [ESX/QB] BryaN Paintjob - FiveM Resource Development & Modding / Releases - Cfx.re Community