Grill Trim

Can anyone show me the steps to restore aluminum trim. Nos trim i found is 700$. I can't imagine every nice duster I've seen spent that kind of money.

If someone could explain the steps in DETAIL( I'm a computer tech, not real great with car's) how to sand buff and protect it.

Or is there anyone that does this sort of thing and I can send it to you.

Let me know and thankyou all for your feedback. This forum is awesome.