JFK Memorabilia Collection

Hello, I am helping a friend to determine the value of this JFK Memorabilia Collection bequeathed to him by a dear deceased friend and lifelong collector of JFK items.  The collection consists of several magazines, lots of newspaper clippings (from various newspapers) featuring Marilyn Monroe pictures, etc., and another mini-collection of "Facsimile documents from the John F. Kennedy Library, National Archives and Records Service, General Services Administration, U.S. Government." In this smaller collection, there are several rough drafts on famous speeches including the famous "Ask not what your country......" speech Inaugural Address by J.F.Kennedy on January 20th 1961.  There is also a personal letter signed by him with his signature, and some other speeches and rough drafts.  I am enclosing several high quality photos from my droid for your viewing pleasure.  I need to know what this collection is worth, in particular if one part is more valuable than the rest, etc.  The more comments I can receive to confirm its value the better.