Hi there, what kind of shopping cart did you have in mind? Photo Blog is not optimized for WooCommerce, which is a popular ecommerce plugin. Themes in our collection that are optimized for WooCommerce can be seen here:
You may also use Storefront, one of its child themes, or any other third-party theme optimized for WooCommerce.
WooCommerce and other ecommerce plugins can be used with the Business plan. If you have any other questions, feel free to let us know.