So 5 Aussie Roster spots, my wild guesses would be:
Adelaide - need a bench Guard - Tom Daly or Joel Naburgs. Would would Kyle Adnam be upgraded from DP?
Perth - need a bench guard - Drake U'u or Eric Burdon to resign for 1 spot?
Townsville - need a wing player who can contribute with 2 import bigs. I think
Daniel Dillon would be a good fit here to rotate with Blanchfield and Stiedl. If unavailable, a big risk would be Deba George. Safe bet would be Everard Bartlett
Wollongong - need a bench Guard - Joel Naburgs or Tom Daly
Sydney - Need a SF. This is the hardest spot to guess. Would they offer Jack McVeigh the spot without pay so he can keep his College Eligibility? He could learn from Childress. Deba George could slot in here. Not many free agent Aussie SF's doing well in SEABL. Maybe Dan Jackson?
My tip would be Tom Daly, Joel Naburgs, Drake U'u, Dan Dillon and Everard Bartlett to get spots.
The 5 Import spots I think would be
Adelaide - need a BIG
Cairns - need a PG
Wollongong - need a WING
NZ- either a WING or a BIG
United - either a BIG or a WING