dont know about karachi as i am in ISB.
tail lights are the hardest to find. light maker can make it for you if you have the frame. i got mine custom made.
side mirrors bhi orignal nai milain ge. so you have to go with the ones you think suits the best.
door glass/ windscreen you can search with dealers who have stuff for 70's/80 corolla.
and if by any chance while searching for your stuff you find external tail light frames, do let me know 
