I have average mechanical skills, and am contemplating rebuilding the 450SEL's suspension myself. But I've never rebuilt a suspension of any sort in the past.
* Is this something the neophyste should
steer 
away from?
* Does the MBZ, because it has sealed grease fittings, require a different set of installation and removal tools than the standard suspension?
* Roughly how much might the bushings end up costing?
* What do you think of polygraphite vs. rubber?
Thanks