OpenCart Customization

We have Multi Vendor OpenCart website ( [login to view URL] ). We would like create an option to Post products of [login to view URL] so that our sellers can post products from alibaba, but after getting authorization from the supplier. 1)- You will create “Search Box" on Create Page of OpenCart. 2)- When a 'Keyword' is entered in the Search Box, it will Search and 'Scrap' [login to view URL] for that particular Keyword, and will list products with Product's Page URL. 3)- After selecting any product from the list, it will Scrap Product's information from Product's URL. (like this extension : [login to view URL] ) 4)- After filling all data at Create Product's page, you will create a button " Get Authorized" . After pressing on 'Get Authorized', it will copy Our website's Create Product's page URL with a "Custom Message" (you will create an option to enter Custom Message which can be edited later). 5)- When clicking on 'Get Authorized' button, it will redirect the user to alibaba's product's page URL. 6)- The seller will then Past 'Add product's page link' to Message Box of Alibaba's product's page, and will click on 'submit'. 7)- After clicking on 'submit' button on alibaba's product's page , it will ask to Sign in or Sign Up on alibaba.com. He will do the same. 8)- Alibaba's supplier will get message and click on the link of our 'Add new product's page' and Edit it WITHOUT signing in to Our application. Then press 'Authorize'. 9)- After pressing on ‘Authorize’ button, then the product will be posted on our system.