Have you ever heard of Aefer? Its a remote auto-installer. All you need to do is signup and add your domain, then feed it the details. Works exactly like Softaculous except that its already a premium version and it uses FTP to transfer files. You also need to create your database manually and input it into Aefer, but it works great.
Try it out: http://aefer.com/
Try it out: http://aefer.com/