We currently do not have any eCommerce themes available or themes which have eCommerce functionality built into them, so this would require customization of the theme on your part if you were looking to add such a feature. Yes, you can search by post code. Vantage can be translated into another language, however it is not multi language capable where you could switch from one to another. There are WordPress plugins for this purpose, but AppThemes does not officially support third party plugins and as such we cannot guarantee they will be compatible with our themes. Ultimately this too would be considered a customization of the default theme. Thanks.
