One other thing is you might want to read up on NOLOCK. You have it littered all over this query. That hint is not a magic go fast solution. It is fraught with a number of very real and possible negative impacts. It can and will return duplicate and/or missing rows which can be nearly impossible to recreate on demand. Please read up and understand what that hint does.
http://sqlblogcasts.com/blogs/tonyrogerson/archive/2006/11/10/1280.aspx
http://blogs.msdn.com/b/davidlean/archive/2009/04/06/sql-server-nolock-hint-other-poor-ideas.aspx
http://www.jasonstrate.com/2012/06/the-side-effect-of-nolock/[/url]
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