This seems about right - I would not offer more. We still keep Crowder, Smart, IT, and Rozier (with the option of keeping Turner, too) and consolidate. I really like Bradley, but there are other players on our team who can do what he does well, including Butler. His value is also at an all-time high and his [guaranteed] annual cap hit his higher than others on our team, allowing us to free up even more cap room.
Even if Chicago doesn't really want Bradley, some other team surely will and a three-way trade might be Chicago's preference, as they would be able to draw assets from multiple teams for Butler.