Is the chrome peeling/rusted? If not then you might be able to straighten the bumper out without damaging the chrome if the press operator is careful. I've seen semi bumpers pressed straight again by using wood blocks and rags to press against instead of directly on the metal itself.
You could also powder coat the bumper instead of chroming it so it doesn't "embarrass" the rest of the car so much when you are done.
I'm in the same boat with our 65 Polara wagon. New bumpers will pretty much mean new everything.
Kevin