Ajax Product Search Filtering Pagination Mysql PHP - Existing Modifications

I have existing code that uses Ajax, PHP, MySQL that currently filters products listings using ajax based on options checked, without refreshing the web page. I have the source code to display the data shown in the image. However, I am not very familiar with Ajax modifications. Items circled in "blue" are new features that I am trying to add to the existing site. The code consists of an [login to view URL], [login to view URL], [login to view URL] and script file. I also have the existing code for the pagination functionality but not sure how to implement it in the the existing platform. I would also like too add ajax dynamic search function that looks at the mysql table field "products_name" and changes the product listing data based on the search words (as the user more than 3 characters) and any pre-selection filter options. I need to incorporate a "clear options button" that would reset the existing options the users has select. I need to change the product view from grid format to product list format as show in the image below (circled in blue) and include a flag button/option that when clicked by the user (for product error.) the selected product then records the users 'ipaddress' and 'sku_id' in a new MySQL table called 'flagged_items'. The flag option should change colors once clicked for a particular item. Each particular item can only be flagged by the user once. Should you chose to accept this project, I can provide the existing sample code and data. I would need to see the complete functionality on your hosted site, fully functional. Once the project have been completed, the amount will be awarded in exchange for the complete source code of the project.