Thanks Gents, I still haven’t matched a known serial number to an airframe, but I did find something interesting in the Australian National Archives. There is a file designating(with Coordinates) a late war/post war dumping ground in an area of ocean south of Sydney. The file does not specifically mention Aircraft, but does list other war suplus materiels that were dumped(in tons), the materiel is predominantly explosives/munitions and chemical weapons. Given the official nature and exacting details of this file, I believe the lendlease(cant explain the Barracudas) FAA aircraft to have been disposed of in this area. I have yet to locate anything about the South east Queensland Dumping grounds, that have actually yielded a FAA Corsair. But feel confident that some records must exist.