What are the X6 Mods and options? or Just wait for F16

[rastaFarai]

So I've decided I'm going to get an X6.. just depends on if it will be the 2013/14 or the new 2015. I'm leaning towards waiting for 2015 but can't find any real pictures of it (non spy shots - I want to see it without all that camo..)

2015 because new interior, new technology etc.

If I go 2013/14, what are my Mod options? Here's what I'd be interested to know:

1. Retro LED headlights - either assembly or halo lights (i know i can do this)
2. Steering Wheel - M wheel, heated?
3. Stereo - mod with mid range subs under seat if it doesn't have it? I know there's stage-1, what else have others done?
4. Interior trim replacement
5. M performance kit (saw this, looks good, does it include the sills? the wheel?)
6. Exhaust tips/ exhaust options
7. 35 or 50... coming from a 4.8is, will i feel robbed in a 35?

and the next question is will i spend $30k modding the thing when I can just go build it!! Built xDrive35 2014 how i want it was about $80k, used one I'm looking at is 2013 about $53k (29k miles)