i have a copy of the SOUTH AUSTRALIAN FACTS SHEET in my car... will dig them out in a minute,
my 74 had the indicators as the reversing lights, they were like that on australian made cars, so it was ok for that year model, buddy got his 77 lhd drive rego a couple of yrs ago when it turned 30, and also has the indicators as the reverse lights,, and that was fine.
he had to change the fronts to amber indicators, and they also his park lights...
for the life of me i cant see a logical reason for installing white prkers on the front as well, who actually uses parkers anyhow?but my parkers where white, and i had amber indicators, they were combined in a single white lens.... see pic.
... what mate did with his 77 front plate, was to cut some STIFF rubber hose, ( garden hose size) and ran long bolts through them to mount the plate away from the bumper... after 10minutes you dont notice it.
im also going to look on another forum for a bloke who just moved here from usa, and bought his 77 over with him... he done something to his front indicators, and has a radical rear light assembly....