I want to buy a E550 or E63 front bumper. Does anyone know where to find these and a reasonable cost?

 

Some people did the coversion from the E55 to the E63 style bumper successfully. I've heard parktronic is an issue if you have it, but otherwise things should go smoothly. Also, the grill and head lights are different.

I saw a quote for $1800 for an E63 bumper not too long ago, but not sure if that was one of those high quote ones or low quote ones