AFAIK, only if you do a custom order.
FN still makes weapons is Belgium
Yes
Yes
Browning did not make the Luger
As far as I know browning did not have any firearms made for them in australia.
Browning has made centerfire lever action rifles in various calibers over the decades.
Special order is possible.
AFAIK, Browning didn't make any rifles in that caliber.
Typically 1970-1974.
Depends on the make, model, and condition. There were a LOT of different rifles made in Belgium. IF the rifle is a Browning BAR (civilian model), it may be worth anywhere from $200-600.
Contact Browning, try e-gunparts.com, any of a dozen stock makers would probably make you one.
Browning didnt make Berretta's. What model gun do you have?