Replacing color and optical behavior (smooth reflective to metallic reflective)

Hey guys,

I have a basic knowledge of composing etc., but a certain special problem I cannot get my head around.

I wanted to cosplay shoot a figurine but the stockings came in the wrong color, so I did the shoot anyway. The figurine is still on location and I can take as many photos as required. As you can see in the attachments I have to replace a monocolor into a different metallic textured color. How can I get this done with Photoshop so that it looks realistic? Do I have to create a special brush with a preset from a photo? And if yes, can someone point me in the right direction how to proceed? Any hint would be very appreciated.

Best regards

Frank