H & R Agripower in Tanner, AL has a demo machine that has 40' true flex draper on it.  It does not have any model numbers on the head.  I saw it run last week, but I did not get any pictures of it.  It was a true flexible cutter bar.  The frame from the backside was radically different from the Macdon FD70.  It was running on a 8230 machine.