2003 bmw 320d 6speed You see the problem is the car needs a new clutch kit

Hi i have a 2003 bmw 320d 6speed.You see the problem is the car needs a new clutch kit. The problem im sitting with is that i cant find a clutch kit by any dealer or agent.My question to you is can i use a 2nd hand clutch that i can buy by a 2nd motor spare shop?