There was a company called Adelaide bumper exchange. It might be worth giving them a call to see if they have one or are able to straighten the bar.
http://www.yellowpages.com.au/online...st=bn&z=100005
The other option may be from rabbitparts.com. I think i mentioned them to you on friday, but they are black and expensive.
http://www.rsjparts.com/catalog/prod...4e9a710fafa859