This is very similar to what I have so far discovered.  I have  traced the Cathars back through the Paulicians and back further to the Antiochan Church.  Also I have discovered their connection with the Ebionites which  had a lineage to the Essenes.  The link you provided is unfortunately not in English.  Is there a site in English or a web page somewhere describing Gadels theories ?  This is too important to leave hanging on an unreadable web page.  Please give us more information.  Thank you.    CoWinn