Parafield is already like an hour away from me and I'm the birthday girl ;)
Nuri for lunch sounds good...
How about Parafield, One tree hill, Kersbrook, Gumeracha, Birdwood, Mt pleasant, Springton, Angaston, Nuri?
I just Google Mapped that and it takes about 2 hours.
Anyone is free to come up with a better route...