I'm looking for a professional appraiser for an extensive Marilyn Monroe collection?

This collection contains numerous black and white/color photographs - some actual snapshot photos on Kodak film paper from a private camera, an actual autographed black and white of her, an 8MM reel to reel of Seven Year Itch - could be uncut - I Haven't viewed it - hundreds of articles, personal invitations, brochures, unopened calendars and magazines, dolls, cards, trays, sooo much more I can't even begin to list ..... I would like to sell the collection as a whole but need it to be appraised first by a professional who actually knows her worth. I asked this several months ago with only one response so please if you could just lead me in the right direction I would really appreciate it. Thank you in advance for your help.