I am all over the shop.
Option 1:
Get: Fogarty, Tedesco, Yeo, & Aubusson
Lose: Knight, Drinkwater, Walters, & Luai
Option 2:
Get: McInnes, Ponga & Fogarty
Lose: Knight, Drinkwater, Walters
Option 3:
Get: McInnes/Tedesco/Ponga/Yeo
Lose: Knight
(I could also save cash for Cleary/D. Fifita return)