go to realoem.com or bmwfans.info and look under front axle.
to buy parts just go to your local dealer since you are in italy?
as others have said, there could be more things that are bent/broken. You will definitely need an alignment when everything is installed.
E92 M3 DCT - AiM EVO4 Data Logger / AiM SmartyCam HD / KW Competition 2-Way / OMP ARS Racing Seats / Brembo GT 365 / Pagid Yellow RS-29 / Rear Seats Delete