[JRTJH]

Your paint was addressed in post #10. You won't find any paint (other than a custom mixed color) that will match the paint on any 5 or 6 year old trailer. You're either going to have to (as you indicated) use some striping tape to mask the damaged paint or paint the entire side with something that's close. No "rattle can color" will match and most (again, as you indicated) custom matching isn't accurate. There's no "easy, sure way" to match 5 year old, faded paint.