Vinyl can look pretty authentic if you don't examine it with a magnifying glass, and alot less trouble than finding just the right stencils to paint it myself.
And I'd be the one to do it. Think back to the early '50's, if Joe wanted Joe's Garage on the door, Joe likely did it himself, perhaps with some stencils. Not the overly stylized custom art we'd hire today.
Again, don't want permanent, don't want fancy. Have considered latex because it'll be easier to remove 5 yrs from now when I get tired of it. Or sooner.