corroded

Ok I am trying to figure what to do about all this splotchy aluminum on my 86. Highly polished or painted seem like the most obvious answer, but I think I like a machined finish better. Or even the factory finish. What has everyone done with theirs? Any good ideas?

What has anybody done with the aluminum side scoops when corrosion sets in on them? Paint, podwer coat, black anadize? any suggestions/