I had looked into it and called honey bee.... they said that they frames are strutted differently and the adaptor wouldn't fit. I have both a honey bee swather head and draper head - the opening is way bigger on the swather too.
going the other way - taking a draper head and putting it on a swather can be done - I have seen a heston swather with a honey bee on it and all they did was modify the width of the lift arms at the end to line up with the lift point on the draper. someone had casted a piece that fit over the arms that made them like 3" wider or so. not sure how they controlled the knife speed or if it was just to a point where it was "good enough"
I belive the newest john deere units (w200's?) use their own 600 series drapers