i think the bottle's rate is fine but i'm doubtful about other two things.
Firstly, i don't think if you can find original parts here, most of the parts are desi (local made).
i purchased mud flaps(4 pieces set) 2 months ago for 350rs and i checked the mfs rate a month ago from jhelum city, and it was 300rs
about air pressers, i think 2500rs is too much, i don't have air pressers in my vitz but my guess is that they should not exceed 1200rs.
To others, please correct me if i'm wrong.