1. You need to roll the fenders if you havent yet
2. IMO aggressive fitment needs zero wheel gap or slight tire tuck to look good
3. -3 camber should be a good ballpark to aim for but it's hard to throw out a number over the internet. There are a lot of variables.
AW/Terra | ZSP | ZPP | ZCW | iDrive | CA
Mods: BC BR coilovers | Blacklines | M-tech rear | dual exhaust | M3 steering wheel | BMW SSK | ZHP shift knob | High-kick CF spoiler | NBT Retrofit
M3 front control arms | M3 rear guide rods | Manzo rear toe and camber links | Monroe rear shock mounts | Varrstoen ES1 19x9.5+20 Front, 19x11+25 rear