Congrats on your new car! As to being able to restrain yourself from modding, you might as well forget about it. I bet you'll want at least an axle-back exhaust, if not full exhaust system, given your history. The OEM exhaust is just too quiet from within the cabin, IMHO. You get plenty of induction noise but not enough of the sweet exhaust note that people outside of the car get to hear. That being said, if you want to be kinder to your budget, search the forums for the OEM exhaust mod. You could also have any combination of the primary/secondary cats deleted or replaced with HFCs for a meaningful increase in power.
I think the first photo looks like Silverstone II because the white balance is off. Your interior is awesome! It almost makes me want to sell my '09 and order a new one with ZCP and two-tone interior for collecting purposes (I plan on keeping the S65B40 forever). Mineral White is a great color with the OEM ZCP parts.
Enjoy in good health!
-phil | 2009 E92 M3 - AW/black/CF - 6MT and a silly grin every time i drive...