Really depends on the model.
The B2 and B3 are way more expensive to operate than the BA. Figure a new 1d1 with all the trimmings is over 400k
A super D is a BA converted with a Lycoming Lts101. Better than a BA no where near a B2. advantage is the Lycoming is extrememly cheap to run, parts and support are in abundance. There is a new LTS101 conversion just certifed, that makes it a super B2, or something. Eagle in Spokane did a bunch of the flight testing on it for the feds. I hear it is a heck of alifter.
Why dont you call Eurocopter. I am sure they can give you the DOC's.
rb