I'd always recommend living in a place before making major alterations like that. I recently had a room remodeled where we had the same situation, an item came with a finish that didn't match anything else in the room. It bugged me at first, but I don't notice it anymore. A DIY coated finish is usually much less durable than the factory one. If it still bothers her in 6 months, then she can change it.

These days it is the thing to not have all the metals match.