What do you think of this trade offer for Dak?

Since I missed both QB’s that I targeted in the draft (Lamar and Josh Allen), I have been unhappy with my QB situation. I drafted Goff and Trubisky. I was already able to trade for Allen (giving up Trubisky and Dede Westbrook). I picked up Mayfield on waivers, but I don’t really want to play Goff or Mayfield this weekend (superflex league). The person with Lamar won’t budge, so I made an offer with the Dak owner. What do you think of this deal?;

I get Dak and D.K. Metcalf. I give up Juju, Mayfield (but I would be willing to give up Goff instead if a counter is made) and David Montgomery (my RB situation is solid with Zeke, Kamara, and Carson).