auto micra

Hi, where can I buy a ncvt electromagnetic clutch brushes holder assembly new or second hand, I bought my 1.1 k11 1998 auto without this part in the car, I know nissan do them but I need them as cheap as possibly and the two bolts that go with it, I bought the car because the engine has only done 28,600 miles and I want to use it as my retirement car, thanks very much tony...