front strut for my 850iIA.

HI ,I 'M LOOKINK FOR 2 USED FRONT STRUTS FOR MY 850(1992).
I WOULD LIKE TO REPLACE THE EDC BY STOCK STRUT INORDER TO INSTALL A NEW BILSTEIN CARTRIGE INSIDE AND ALSO LOWERED IT.
SO IF YOU KONW SOMEONE WHO HAVE 2 USED STRUTS ,LET ME KNOW.
I DON'T NEED THE SPRING AND THE BEARING LOCATED ON THE TOP OF THE STRUT.
ALSO I NEED INFORMATIONS ABOUT SPRINGS. EIBACH , H&R OR.....
GIVE ME YOUR FEELING ABOUT THEM.
MANY THANKS ,AND SORRY FOR THE QUALITY OF MY ENGLISH.
JEAN-MARC