I agree with a lot of what you said. Few areas I disagree:
If the Bears are going to a 3-4, the need for Peppers and Melton is gone, so they will be gone. NT is the huge hole, and I believe the Bears will go after either BJ Raji or PAUL SOLIAI in FA, while also drafting Louis Nix at 14. The big splash FA signing, if he makes it to the open market, will be Brian Orakpo.
Your front would consist of: Nix, Paea, Soliai; Briggs Bostic in the middle, Shea and Orakpo on the outside.
I don’t think it’s far fetched at all. We will know right away on March 13th, if the Bears chase down Brian Orakpo in FA.