Looking at the Dodgers:
Pollock is owed $51M/3 counting the buyout for 2023. He has negative trade value and would greatly offset the cost of Price ($96M/3). Looking at Price, for a cost of $45M/3 is not so bad. He might even get that as a FA this winter, assuming he was one.
Joc Pederson might get about $10M in his last arb year. While that's way less than Betts, it does knock the cost of Betts to $18M not $28M.
All-in all, the money part of the deal works for the Dodgers, IMO. The sticking point might be the prospect we want added to the deal (or maybe add Chris Taylor- assuming we dump JBJ & Kenta Maeda).
From the Sox point of view, we see these budget savings:
2020: $35M ($60M Price+ Betts- $25M Pollock + Pederson)
2021: $14M ($32M Price- $18M Pollock)
2022: $19M ($32M Price- $13M Pollock)
Total savings: $68M
The Lux tax hit is even better:
2020: $35M ($31M Price+$28M Betts- $12M Pollock+$10M Pederson)
2021: $19M ($31M Price- $12M Pollock)
2022: $19M ($31M Price- $12M Pollock)
$73M total Lux Tax savings