Way too many questions which is a good thing.
Parts,i dont deal in them so no idea abt price.Best way to find out,go to your local market and ask for them from 2 or 3 diff shops and see the price and availability.
I have a 2002 one auto,1000cc,fully loaded for 550k
99 fully loaded auto trans for 460k
Both above are upgrade.
A sadi gari,no power windows etc and auto will cost 375k
Duets in Pak are 1000cc mostly
My name is Altamash but Alta does the trick,price for that corolla is final,as are most of my prices,a few k's here and there can be done but nothing major.
My number is in my sig