Whats the most you'd give up for Brees based on my lineup?

QB Kaep, Newton
RB Lacy, Vereen, Asiata, Hill, Starks
WR Nelson, Allen, Gordon, Torrey, Randle, John Brown
TE Niles Paul
Def Panthers
K Tucker

His team:

QB Brees, Brady, Cousins
RB Le'Veon Bell, Martin, Sproles
WR Fitz, Jennings, Steve Smith, Allen Robinson, Boykin, Jarvis Landry
TE Vernon, Clay
Def Pitt
K Gould

FWIW, I just traded Brady to this guy because his intent is to trade Brees after the Dallas game for a position player. Told me he was looking for "a nice flex guy". This guy is currently 0-3 and in last place.

Whats the most I should be willing to give up for Brees? Or should I be looking to get him at all?