here is the rotor for mercedes 300SDL --> only $28/pc

http://www.autohausaz.com/search/product.aspx?sid=r2ljotfxtgl3l3j4yubnr345&makeid=800016@Mercedes&modelid=1194072@300SDL&year=1986&cid=14@Brake%20%26%20Wheel%20Hub&gid=1896@Brake%20Disc/Brake%20Rotor" target="_blank" >Rotor by ATE