Your local autobarn or autopro store can get them for you and a couple of Brisbane stores may even have them in stock!
Ball joint (Includes lower arm) part numbers are BJ124 and BJ125 (left and right)
Tie rod ends are TE406R (Same both sides)
Definately no need to buy this stuff from England! It is still available locally but as there arent many of these cars getting around anymore not a lot of stores will carry them in stock but they can usually get them for you within 48 hours max.
G