^^Good to know that you are trying to make your Pride better than the rest.. Good Luck,
Firstly, for gear oil you have to go to a mechanic to replace it because there is no gauge provided by the Kia as far as i know.
Secondly, I wish I could've helped you finding parts but you are in Lahore .. I would suggest you to find someone who know places in Lahore. In Khi, I almost found every part body, mechanical and engine at the Plaza; both old genuine parts + new ones.