Oh man that would be huge! My inlaw's have an Explorer I drive sometime, and for whatever reason that chime really grates me, so much so I had even debated not buying. Thanks for the heads up on this.
Just paint them yourself. Ive done many, many sets in my day lol.
3-4 cans of wheel spray paint and 1 clear coat. It is easier to do though, without tires on.