Update: purchased replacement trim for the scare light and the rear lights.
Removal of old pieces was easy since I was worried about breaking them. Easy to pry off once you get a finger under one side. Used a plastic scraper to start and protected the skin with a piece of cloth.
New pieces popped right on.
Had already put a few coats of this "chrome" protector on the pieces and added another coat after installation. Maybe this will delay the corrosion.
A few before and after pics follow