A few hundred bucks? Its not a big piece, and thankfully, its a freestanding part so i dont think you need to blend multiple panels
Alternatively - i bet you could find a junked Z in that color. Just buy a mirror and swap it in, should be easy for a shop, particularly if its all covered by insurance
the real solution would be to punt both mirrors and get some Craft Square mirrors
If that wash place is gonna give you a few hundred bucks just spring for the difference and get the craft squares for the hotness