I dont think you'll find aftermarket lights for an F30.
While I can understand the sunroof only specing from factory, but xenons if you really want them and plan to keep your car for a long time. Go for it. You will be looking at nothing less than R6 000 for OEM housing and after market ballasts and bulbs, up to R10 000 for all OEM.
Ebay Xenons F30
Theres a set going for R8000 , R 9 300 with shipping, probably a whole lot more once customs comes along.
Best would be to source from scrap yards.
Also if you get adaptive lights you will have to pay more for another lighting module or something.
Anyway I will tell you if they are worth it. My OEM xenons should be arriving today or tomorrow for my E90. I am very excited. I agree halogens are just not bright enough nowadays with all the new cars on the road blinding you. And the doos with his HID kit in halogen reflectors with his lights on full tilt :fishwack:.
I would go for it.