If you think those parts are expensive, try looking up similar parts for a CLK63 Black Series... I wrote an estimate on one of those a little while back and it had no sheet metal damage. Just a Bumper Cover, Reinforcement, left muffler and heatshield, Left Tail Lamp and Trunk Lid(was able to re-use the wing) and it was over $11,000.

I also wouldn't advise you have the repairs done at a certain Body Shop behind a certain Nissan dealership in Virginia Beach. Take it to Art Walker's in Va Beach, Tim's in Yorktown or Harmon's in Hampton. They specialize in high end and exotics.