The chrome pieces can definitely be separated from the bumpers and then put back coz I did that when I painted the bumpers all black on my old car. From what i remember, have to remove the bumpers though.
The bumpers are very easy to remove and you don't even need to lift the car. I wish I could show you, but the pictures I took when I removed the bumpers off my car are on my old computer which is sitting dead in my apartment.
Sorry, not much help.