How to open a web store from Havana, we can get some requirements needed to open the store using Volusion or similar service.
I would use Magento, you can host it and use any payment gateway to setup the payments and a shipping system to create efficient logistics. Let me know if you need help creating the store.
Shopify...you'll be open by the am!
Are you seeking direction on how to technically create the site? Have you settled on volution as your e-comm platform of choice? From what I have read and seen of volution, it's a great choice for those without any deep implied e-commerce needs