Thanks Mr, Indi and Yii.
Yeah Naz, the 4.6 add-on is definitely the most economical way to go, and in my opinion 99.9% of people and even car enthusiasts can't even tell the difference b/w the 4.6 add-on with facelift and the 4.8 full front. Yeah that's the link...Hp99hps confirmed the fitment.
TQ2K- I did NOT remove the rear bumper, or wheels or drummel slits in the rear. I followed MrBMWx5's instructions and they worked perfectly without compromising durability/support. Here's his link:
DIY..How to install the rear bumper supports and flairs.
Whole job took me about an hour...