sorry for late replies but too much work at office
@shahabrk
Have you installed the rims.If so,Is there any vibartion issue?.Try to get the Rim Size 13''--@testdriver has 14''-- but it is your choice but I wont recommend as you will then have to decrease your tire profile which will lead to bumpier drive(Less space for tyre to absorb shocks leading to shortened life of shocks).
@Faisal
If you didnt find the seat covers then visit RAJA bazaar Rawalpindi.There you will get the ready made ones.
As for the windscreen,as @testdriver suggested,Visit Shaan windscreen
For the rear door handle,visit Federal Autos I-10 Islamabad Phno:-4443594,4440508 .He just recieved fresh stock of new parts