Add products to PRESTASHOP shopping cart

I have one prestashop store and we want to upload ( copy ) products from other store and install it in prestashop store with images & need to create combination for color or possibly two more options. Store has around 1400 products and need to transfer with same categories and subcategories. Need to done within 5 days.. Serious bidder , the bidder who can transfer directly from database or csv file is more acceptable although MANUALLY worker are also invited but it will be tough to transfer such products in so limited time, yet they are confident then i would like to pay attention. Remember lower bid and lower time period will have more preference, don't waste by bidding so large, ready to award the project. Thank you.