cosmetic system

I would like a system where you can overlay a cosmetic version of any armor piece you've collected before. In many builds you'll be using tons of different set pieces resulting in different looks and colors. A system where you can merely overlay armor pieces you've collected before would make character customization a lot nicer and not look so horrible. Maybe even hide armor (pieces)?

A system that tracks what armor's you've already collected and have not is already in the game so this shouldn't be hard.