I know I won't make any friends here AFJon, but remember this. When you've scoured the nation for Lithgow this that and the other and paid astronomical prices for these special bits to complete your rifle, IT STILL WON'T BE ORIGINAL! Sure, it'll have all Australian bits but they ain't the original bits. Just like every(?) other Enfield in existence (except the new-in-wraps of course) it'll never be as it left the factory again.
Like changing the alternator or front shocks on your MGBGT