It’s very hard to tell from the pic, but it doesn’t seem to have cans, so would assume its an ASDM.3 or 8.
Though looking at the size/shape of the crate and going from the report I wonder if could be two individual Mambas?

The ASDM.8 (AEW type) is longer than its predecessors as there is an extra compressor stage (11 instead of 10), the distance between the gearbox output shafts (thrust line) of the props is reduced from 11 to 6 inches from the engine centre lines, and it is wider.
The advantage of that in the AEW Gannet was as the aircraft was higher off the ground due to radome clearance, the relative thrust line could lowered in the fuselage, and the upper nose line steepened which allowed for better pilot view.

Edit, dimensions (inches) with installed ancilleries
L W H Weight
ASDM.3 98.67 52.8 44.25 2,716Ib
ASDM.8 109.7 56.55 45.28* 2,500Ib *inc. oil tank