Crear módulo para Prestashop de 2 precios

My webpage is [login to view URL] (Prestashop) I want to do a module, that must do: 1) Shows lowest price by default on the category pages. 2) Shows both prices on the product page (one is for cash, the other is for credit card) 3) During checkout, when the client select a payment method, the confirmation page will show the update price based on whatever method they chose. P.S. It's important to know that normal price and cash price don't follow a rule, so it can be the same or different. When you edit the product in the admin webpage you should put the two prices in separated boxes (see the attachment file). Note: The payment can be grouped and selected in an "admin area", for example: cash ---> price type1 credit card, debit card, paypal, Google CheckOut ---> price type2 Note 2: I have the intention to sell this module after the implementation so you have to be open to update the module later (with a cost obviously) . And of course this should be a module, so it supposed to be auto-installable. Note 3: I have already done this module for Opencart. Please check the attached files to see what I'm trying to say with "admin area". Note 4: If you can do this same module for other platforms like Magento, WooCommerce or Opencart please tell me. I'm also interested. Some examples of two prices in my country: [login to view URL] [login to view URL] https://www.pcfactory.cl/#producto=25329-Hub_Smart_Home_Wink2_WiFi_Ethernet_ZigBee_Zwave [login to view URL]