All Classified forums require a Site Supporter subscription. It is only $25 per year and you can buy and sell whatever you like on the forum. To become a Site Supporter, go to Your Profile and select "Paid Subscriptions."
The emblem on my 87 grill had two trim nuts on the back side of the grill. Take the 2 nuts off and then pull the emblem straight forward and it's off.
All of the '73-'90 grilles are plastic...nothing to rust or dent or be aluminum.