Hi
I found this while looking for info on the AL-KO chassis that is fitted to our 03 Ducato which has the AL-KO AMC Chassis & the factory Premium AirBag suspension fitted - which is excellent. From the Pics this must fit an earlier version of the AL-KO TorsionBar rear suspension used on their AL-KO AMC chassis but they might make a similar version for the new type as well, worth a try.
See attached PDF - just looked - actually it has a listing at the bottom of the PDF for 00-06 models as well the 94-00 models.
Hope this helps