1)Buy pioneer avic f-900bt it has all imputs and DVD player as well
2)Buy control module,so that you still can use your steering wheel controsl
3)Buy smoked LED tail lights
4)Buy chrome or carbon pillar posts
5)Buy smoked side LED markers
6)Buy BSW speakers
7)BSW sub
8)BMW x5 4.6 body kit + flares
9)OEM stlye 87 ofcourse wheels + tires , or if you like get 168 style or even 215. don't buy replica,go with OEM
10)Headlights with LED angle lights pre-installed with HID 6000k
11)HID fog lights,or just LED at least
12)OEM aluminum running boards
13)Exhaust. get 4.8 or 4.6 one,or if have extar $,get Remus or other performance exhaust.

Good luck