is this rare,, should i buy??

[rapidride3]

I found a really straight 76' tailgate from the salvage yard. It has very minimal surface rust,,,but the biggie (ithink) is that it has a perfect cheyenne (small inset) tailgate band. I am new to the 73-79's. I don't think you can buy that 70's cheyenne inset??? I can get the whole t-gate for $50. p.s. the only thing wrong is it is just a tad dull,,,,can these pieces be polished without any problems,, bringing back the shine???? I have tried hand polishing before with no success???any tips??? thanks Matt