sounds good. If I were you I would do a seach on the forum for "replace ignition cylinder" lots of info and many say that the aftermarket cylinders are hit and miss on quality.
Several people have talked about this and many give very detailed instructions on how to do the job. Might be helpful

Try these links:

http://www.peachparts.com/shopforum/showthread.php?t=190417&highlight=replace+ignition+cylinder

http://www.peachparts.com/shopforum/showthread.php?t=142232&highlight=replace+ignition+cylinder

__________________
Christopher Henkel
1990 190E 2.6 - Arctic white SOLD
1986 190E-16v - Blauswartze
1993 300CE - SOLD
2003 W208 CLK 320 Cabriolet - Magma Red