Would you paint aluminum radiator?
I voted and posted black since you have no other bling as it would stand out. And it is a slippery slope.
But I love polished stuff. You start with one piece and before you know it the car looks like it is in 1978.
And don't get me wrong I loved 1978. I think the movie Hot Tub Time Machine is silly. If one Ad transported back to early 80s I would not try and get back.