Gottcha!
There isnt any off the shelf Brush guard/after market bumper.
I modified a Merc ML320 unit.
(Take a look in my gallery...pics wont post for some reason right now)
Here is the "How to" thread on that....
http://www.vehicross.info/forums/showthread.php?t=7655
Eleventh post down on this thread gives the basic how to.
Hope this helps....I may even sell it if you are interested..
...as I have another version in the works.
Jo