You asked about suggestions on spoiler. I looked around before deciding on this one. Looks great. I found it on Amazon - AeroBon Real Carbon Fiber Trunk Spoiler Compatible with 2009-16 BMW 5er F10 and F10 M5 Sedan (Performance Style)
It came like this from factory as part of a MSport package. You can find it by searching for F10 MSport front bumper, good luck! And thanks for watching!
Nice project car. I have same MSport model in black.....well, carbon actually. But I'm UK based so went with the 530d. My remap should put it at about 300bhp/650Nm. But I posted as I've tinted my headlights and you wanted to see. Here's a link to my car build. Most recent shots have the tints: pin.it/5yPCTdQ I'll check to see if you have any more vids on your build 👍