Need Replacement Bumper For 2006 Toyota SR5

I have a ding in my truck's rear bumper and the dealer would replace it for around $600. Can anyone recommend a quality replacement bumper at a better price? So far my web searches only find boxy looking bumpers that look like something my uncle Fred would make in his garage. Thanks.

I'm still looking for a replacement bumper. Should I suck it up and pay the $600 or are thier comparable bumpers out there at a fairer price?