Welcome! Good to know there's some Ke20's in Canberra :D. I'm in the Gungahlin area just north of Belco, so if you see a bright-yellow corolla, or a Z20 Soarer, that's me.
First thing I would do is suspension. My car had rooted suspension and it was only 1981, so if you get worn bushes replaced, and the shocks changed over if they're tired, you can also get the leaves re-set and get king springs for the front, if you want her to sit nice.
Can't wait to see it!
Ben