I really like the sinuous gold mask. It looks great! As for the stanchions, you could just isolate the stanchions... then you could use your hue and saturation tool levels to achieve your desired result however, seeing that the RC3 stanchions are nickeled you may just have to be a P-rat de-gets me gold!
For example: http://www.pinkbike.com/photo/7668506/?s6
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Cheers!