The package arrived today (way ahead of the delivery date), With all pieces for 106$ (Yes that includes the shipping too and the V6 Nose Piece W/the piping). Look up lkqonline On Ebay Hopefully he has more, for you guys

Now all I need is the 74mm Throttle-Body, does anyone know any reputable dealers/sellers???

 

Car-Part.com--Used Auto Parts Market , look up the MB E55, then look at carguts in the listings.
I got mine from them, they were nice folks to deal with ....
( I even was stupid enough to order the wrong TB, they paid for shipping back and sent me the correct one : A 113 141 0125 )
carguts currently lists 26 of them at $85 a pop .......
you could just call them at 1-866-839-2708 and make sure they send you the above part number.

 

Does the throttle body come with the housing (the elbow)? or is that separate?

 

01-04 2001-2004 Mercedes Benz SLK320 Air Intake Cleaner | eBay

There is another one with all parts for sale