MustMakeAmends,
I've attached a picture of the tool used for the diff mount bushings. This is the Sir Tools M 0074.
In regards to the suspension arms, be aware that your original nuts and bolts may be hex head, whereas the newer replacement bolts will will have an 8 or 10mm internal spline (triple-square or XZN) 12-point heads. It is
not a Torx head. Make sure your mechanic has this tool. Also, make sure that the newer arms utilize the same diameter bolts that are on your car now. There may have been a change to larger bolts in which case you would need some sleeves to take up the slack because your car would still need to use the smaller diameter bolts in the frame and wheel carrier. Check with the parts person where you're buying the parts. There should be a note in their electronic parts catalog as to whether your year car will need any additional parts when you buy the particular suspension arm.
If you can display and print the pages that I linked, I don't see any reason that you couldn't access any page on that site. If you start at
http://mb.braingears.com/ (note: no "www") and select either disk 1 or 2 in the model selection list under the Model 124 Chassis (1986 - 1995) heading what happens? It should take you to
http://mb.braingears.com/124_DISC2/Program/matrix.htm . It will display a black page for a few seconds, but then should display the year/model selector matrix where you can choose your car. This will then take you to a confirmation page and then to the main index page.
There's nothing platform specific about any of this as far as I can tell. It's just another web page written in HTML.
Try these links individually and see if you can access the pages:
Braingears chassis and disk selector page -
http://mb.braingears.com/ . Choose W124 - Disk 2.
Year/Model matrix for Disk 2 -
http://mb.braingears.com/124_DISC2/Program/matrix.htm
Select 88 300E and then confirm. This will take you to the main
index. It should still be on the same url shown above.
Chassis Subindex -
http://mb.braingears.com/124_DISC2/Program/chassis_menu.htm - This should display the list of Main Systems on the car, i.e. Central Locking System, Electrical System, Brakes, etc. Choose "Rear Axle - Center Assembly" This should take you to:
The "Rear Axle - Center Assembly" main function Group -
http://mb.braingears.com/124_DISC2/Program/rearaxle_centerassembly.htm . Click on "35 Rear Axle - center assembly" and this should bring up the Sub-function group listing, again still under the above url. Clicking on any slelction within the sub-function group should then launch Adobe Reader and display the actual service manual page.
Hope this helps,
Gary
PS - While I was typing this I had no problem accessing any of the pages at Braingear, including the .pdf files. You may have encountered a transient problem with the site.