^ definitely. The unit that LTBMW is putting together apparently fits the SLeK front lip for the 1m so I am assuming that one would fit all 1M lips.
I would say an OEM type material. I am sure there are those who wouldn't mind a CF bumper but I would rather have a $500-1k bumper and not a 2-3k bumper. Also another reason I would want the lip is to act as a cheaper "disposable consumable" to guard the bumper. I hate putting it like that but the roads around here are horrendous and I want to drop my car even more. Rather a few hundred dollar lip than my most likely 1k+ bumper and that doesn't include paint. Plus would a CF option really be that much lighter? I know every ounce counts but it would have little effect even for those of us who are track enthusiasts.