Trade for OBJ or Green?

I’m targeting the Dalvin Cook owner and thinking of making him an offer for either of AJ Green or OBJ. Was thinking of giving up Melvin Gordon, maybe try to get Mixon from him as well. Standard league btw

My team is :
Roethlisberger, Stafford
Hunt, Gurley, Gordon, Anderson, DJ
Jones, Sanders, Crabtree, D Jackson
Engram, Reed
Jags D

Should I try to snag one of those receivers, and if so, would Gordon be an overpay?