Drag and Drop Web Builder

This is a drag and drop web builder needed in HTMl, JS and PHP. Time period is 15 days and Quotaion is upon you we will select the most feasible. Bidders showing relevant work or examples will be prefered. Features are listed below: User will Signup and Login into the application User will see an option to select a template/layout or a blank page User can change theme (like bootstrap themes) User can Drag and Drop HTML Elements into the playing area User can preview the created elements User can add new pages and link those with each other User can download zip archive of the created pages User can view previously created projects etc ----> Couple of dynamic features also should be available: 1- adding a contact form which will be linked to email, 2- Simple Shopping cart which will surely require product uploading mechanism ---->User can host the created pages on our website which will require creating dynamic subdomains. ----> For reference see [login to view URL] and similar. Looking forward to your response.