Data entry for OpenCart from another website

Hello, I want to add products in my own store from another store (copy paste) the store call [login to view URL] i will give my store but i need to know how much it will cost and the time. My store running with OpenCart 1.5.5.1 . You will take all the product info and put in my store like name and price description product code and the images of the products in (HQ)you need to zoom it .? Even the size and the colors of every item will be added . Please review the website and see how it works first . some info will be edit i will tell later I want to upload 1500 items in my store from [login to view URL] , I want it in 3 days start from now if it's possible or tell what you can do .? P.S: 1 Mistake mean the project is cancel BONUS: We will continue work with you every month to do the same work . Thanks,