Photoshop - change silver to bronze

I have a need for someone with advanced Photoshop skills to initially adjust just part of 1 image from silver to bronze. The requirement of the bronze is exact and cannot just be close it has to be very realistic and not detract from the rest of the image. Once happy with the 1st image, I will have 2 others and then submitting to my client for approval - if client is happy then there will up to 30 or more to do exactly the same to. You must have proven skills and ready to take on this project within the next 24 hrs. I can supply the 1st image with a clipping/work path. Also, you must be contactable via skype (text messages only). I am looking for along term reliable, highly skilled results based individual.