I just bought a vintage black lambskin classic 2.55 medium flap. It's in great condition but the gold hardware looks somewhat dull and silverish due to it's age. My question is, if I take it to chanel to change the hardware will it hurt it's resell value? I know dyeing the lambskin will make it harder so I am not even considering that but i would love shiny new "gold" What are your thoughs on this?? Should I replace the hardware or keep the old hardware?? I want my chanel to retain it's value as much as possible TIA!!