Urgent - Add some feature in wordpress plugin

Hi , I have a plugin [login to view URL] It fetches product title from local database and produces products / products prices from various sites for price comparison. I want to modify/ add below points 1) instead of reading product title from local database table i want to add option to enter remote db IP , DB USER name and db password and let it fetch product title from remote db . so developer should add this option also developer should add option to maintain editable index/counter of current product title admin can change index . also delete the title once and related product from remote db when title is fetched with check mark yes / no also give option in plugin to fetch product title from which category . Payment terms : No upfront money we will deposit money in advance but will release after verification and testing on our server . Thanks Sneha