There are very few colours that can pull off orange indicators. Dakar ain't one of them as clears look way better than orange.
Wheels, keep the originals aside and try out some other OEM wheels and spacers if needed, at least make your M3 an individual and not a clone of the other 300 running around jhb. As for the wing you like, the oem version weighs 6kg without the risers! A quality carbon fibre one should be imported should you wish to go with that spoiler and don't forget there is a difference between 2 and 4 door models. I like the e46 M3 lip spoiler on the 2door, subtle and not out of place, looks as though is came from the factory like that.
Congrats on the new ride!
Plastidip them kidney grills black, please!