ASA Xulfiqar.
I see your point and its a valid one. Of course i will be replacing any bushes etc as i can purchase them from here in the UK. My issue is ground clearance, In the state of Azad Kashmir the roads are very bad. Speed breakers or Speed humps are very high due to which even 2D Corollas are struggling. When i mean high i mean they have been made to a very bad quality and the height of these speed breakers are silly.
In order to gain ground clearance is the reason why i asked about the air ride suspension, as you can control height from within the car and then drop it as required. I personally would not like to see a W124 jacked up on big suspension setup as it would not only effect the driveability but also the stance of the vehicle.