The Braves would love to get out from under Jones and Ortiz contracts, and still look like they are "going for it". That's why I see Maggs as a potential part of this deal. I think KW should insist on Estrada being included before even considering taking on those contracts.
The Braves could either keep Maggs for the year and let him walk, giving them some major payroll flexibility or turn him over for a couple of ML ready youngsters (Minnesota? ) .
So you'd have Estrada, Jones and Ortiz for Maggs (or possibly PK), and maybe Rauch and Rowand. Intersting possibilities, but longshots at best.