to verify the water pump noise, take it to a mechanic who has a stethescope or make one with a pipe and screwdriver, touch the waterbody housing for noise while running, it should be smooth.
If not - change it, while its being worked on and your mileage is near to 80,000 kms, ask them to change out the belt and tension roller. and crank and cam oils seals too (even if they are not leaking - old rubber ages and leaks when you wont want it - replacement of said seals requires timing belt to be removed anyway) Be there to monitor the work - a good mechanic with good hand tools will only take 2 or 3 hours at max for this
For suspension work - take car to sarviss tayshun which has a lift, take a big screwdriver with you too, get under the car or ask someone with experience to rock the bushings and joints, anything that is moving with the screwdriver is damaged. rotate all the wheels and check for bearing noise. If you do hear noises get genuine bearings, seals and genuine "disc brake" wheel bearing grease - the drop point of such grease should be 250*C or above, Mobil, FUCHS, Caltex all sell it. The best in my experience is FUCHS Renolit LX-PEP2 which is also the original green colour wheel bearing grease of Mercedes Benz (MB part no A002989005110) - very very long life - the original fill in mercedes front wheel bearings is good for at least 10 years.
The mehran bearings are cartridges - but they are usually void of proper fill of grease, removing one seal of each bearing, washing in petrol and filling with new proper grease makes them very long life.
For the rear kamani, check the shackle bushings and the shock absorbers - replace if they are leaking, Gabriel made in Pakistan work good and take about 30 minutes to install.
For front bushes - if they are worn, replace them but do not let the shop use grease to aid in installation, instead buy a tube of KY jelly from the pharmacist and ask the shop to use that. Grease and oil rots out the rubber.