Good luck getting one...or finding one. There are a few roadblocks to endure in finding this species.
-it's a marine species that inhabits river fronts along with estuaries and coastal waters.
-it's an australian species which means it's most likely illegal to export.
-the species is known from only a single captured specimen.
-it's listed in the IUCN red list as endangered.
Here's a comment listed in the IUCN red list profile:
Justification: Known from a single specimen of uncertain location within the Indo-Pacific, with possible conspecifics (based on jaws only) from Papua-New Guinea and northern Australia. The ecology and life history parameters for this species are unknown, but it is extremely rare, and probably confined to rivers, estuaries and adjacent coastal waters under significant pressure from development, exploitation and habitat destruction.