What is Tom Brady worth?

I’m trying to trade for Tom Brady in a 1/2 PPR redraft league. I had Cam Newton as my starting QB but obviously that hasn’t gone well.

What is a fair trade for him with my existing team?

Cam Newton
Ezekiel Elliott
Dalvin Cook
Chris Godwin
Tyler Lockett
George Kittle
Terry McLaurin
Will Lutz

Tevin Coleman
Tony Pollard
Alexander Mattison
Mecole Hardman
Vance McDonald