Probably not. I'm not sure that all the items on your list are available at the moment (not sure if they're planned either). It may be that you would need to marry Alfresco and some other product, Liferay maybe?
The other option is to attend the webinar about building alfresco.com with Alfresco. Actually there's also the Liferay+Alfresco meetup.
Is this for a personal or business site? You may be better off contacting Alfresco if it is the latter. Sorry for being vague, but I'm still getting to grips with Alfresco and its features and functions myself
Thanks. Yes, it looks like Liferay has many of these features. I'll need to check out if they are separable (i.e. JSR-168?) from Liferay itself or if I need to have both Alfresco and Liferay (which seems overly layered, but I could easily be mistaken).