The DBMM army list allow up to nine but I ended up purchasing an even ten, again from Xyston miniatures:
There are two body poses with a choice of two different heads, one with armoured tusks, so it is possible to make up four different elephant combinations:
They are each supplied with two crew from a choice of three figures, plus two different mahouts:
The elephant figures themselves were supplied in two halves with, as mentioned, a separate head, and the figures fitted together very nicely with the mahout conveniently sitting on top of the exposed join between the head and two halves:
and the tail blending in with the rear join very nicely:
The only downsides are that the tower comes in four bits so took a bit of lining up, one of the crew figures had a massive arm which made him look a little as though he was suffering from elephantiasis and was difficult to file down, and the extended trunk meant I had to line them up diagonally on the base to allow them to be positioned line astern if required. Minor quibbles about what are otherwise excellent models:
I now only have a few stands of character figures and eight early Carthaginian chariots left to go, which means the end of this particular project is now very much in sight.