Customizer for Woocommerce store

Hello! our website is just about ready. (www.LuxuryCustomCard.com). We are looking for a product customizer similar to that of https://www.stripesmith.com/order.php OR https://sugarswipes.com/products/custom-card-product. This will need optimized to save the customers input and add it to the cart so we can see their design. You WILL NOT be creating any pages on the website. Just creating the customizer and implementing it to the page designed for it. You will also need to complete any backend work to make sure the custom product is added to the cart. You DO NOT need to create the cart page although you may have to make some changes to implement the customizer. you also will only need to make ONE product which will be a “custom product” for the customizer and the “create your own” page. we will do all other products for pre-made designs. your focus is solely on the custom product section of the website.