The way i built my car...
2013 Space Grey 535xi
Cold Weather Package
Multi Contour Seats
Dynamic Damper Control
Park Distance Control
Rear View Camera
Soft Close Doors
Everything above honestly is a must have for me and the only thing i could see not having is the soft close doors. They work great but only useful if you have a baby/kids.
Options i would add if i could do it over again?
Drivers Assist Package - (The F10 feels like you are piloting a small plane or boat so i can totally see how the cameras would be very useful. More so than the soft close doors)
Ceramic Controls - (this depends what interior trim you are going with. I went with the Aluminum Hex trim so the standard silver controls looks fine but if you are going dark wood the silver will stick out like a sore thumb)