From my days in the collision business, I have become aware of the problem, or potential problem, with re-chrome bumpers. Some are good and others are not so good. Some of the chrome yellows, some of it peels off and some of the bumpers rust from underneath the re-chrome. Other re-chrome bumpers last for years. It's a crap shoot.
New repro bumpers generally are not re-chrome and costs are simular to a re-chrome bumper.
If you already knew this, I'm sorry for the post. If you didn't, it's something to think about.