Does indeed sound like an amazing (and tough) event. Not for me , however, this year, as I've signed up for an Alps N-S Raid the week before with Marmot, which was also on my ''to do'' list, and cycling holidays are to be limited this year as its my 25th 'Silver' Anniversary Year!
Am still keen to ride in the MC Region soon(ish), though probably at 'touring' pace. Will be following the event and subsequent ride reports with interest. There is also a facebook page.