Congrats, an impressive spec! I think you made the right decision about the adaptive cruise control and night vision. Both options are ridiculously pricey (as most of BMW:s options BTW).
I would strongly recommend the second best HiFi Pro system (Dirac 600W). It is well worth the extra money compared to the others. The 351M wheels look great but I have already had two accidents when parking to close to the curb - a disadvantage with low profile tires and 19" wheels