How about the below.
Carlton trade with the Giants.
Giants get Picks 6 and 25
Carlton gets Pick 12, Giants 2022 1st and 49 (slight gain points wise towards Carlton, but the benefits for GWS of getting in front of the Fahey pick are important)
Carlton trade Pick 12, Giants 2022 1st
Receive Cerra and Pick 27 back
Carlton trade with the Giants.
Giants get Picks 6 and 25
Carlton gets Pick 12, Giants 2022 1st and 49 (slight gain points wise towards Carlton, but the benefits for GWS of getting in front of the Fahey pick are important)
Carlton trade Pick 12, Giants 2022 1st
Receive Cerra and Pick 27 back