Prestashop experts only, Need to add multi country shop ( currency - vendors - products ) change Geo location based

Hi PrestaShop experts, We need guidance ( not actual work ) means you will only guide our developer to fix this issue: We have online store in Kuwait and we want to sell our product in Saudi Arabia, Saudi Arabia have different currency and also we will sell different products with different vendors ( my site is multi vendor ) [login to view URL] so we need an auto Geo function or module or any way that if our costumer open our site in Kuwait he will see the vendors and products that we offer for Kuwaiti market with Kuwait currency only, And same if Saudi costumer open our site he will see the product and vendors that we only sell in Saudi Arabia with Saudi Arabia currency not Kuwaiti currency. Just like most of the site who have multi shops: [login to view URL] [login to view URL] [login to view URL] So the user just change the flag and he will be in other country shop with different vendors products and currency. If you know how to add this feature we need you to contact our development and follow him step by step until we have two country online shop, Remember our site is in Prestashop and its read, And we dont need you to work on it just guidance would be enough. Payment will be done after we see this feature is ready and our site work in two countries with different vendors, Currencies and products. All the best Khaled