If the club can move Sullivan & Bateman on, with the cap space available, I'd be trying to pay out as much this season as they can.
For example- we are under the cap now by (let's just say) $800k
Sullivan is on $500k per year
Bateman on $650k per year.
Club A takes Sullivan and we chip in $300k, they pay $200k
Club B takes Bateman & we chip in $350k, they pay $300k
Tigers 'save' $500k to add to the $800k, giving $1.3m to spend for next season.
OR...
Despite moving them on, Tigers pay Bateman $650k as promised in 2025 & Sullivan $500k as promised- so that in 2026 we owe both players $200k less & $300k less while not changing our cap for 2025 at all- either up or down. But 2026/2027 cap hits are reduced by the price of a pretty decent 1st grade player on $500k.
Short term pain for longer term gain. That extra $500k could fall quite nicely into Galvin's pocket next year to then keep him.