The rest is ambitious, but not gonna happen.
If we let Orton, Anderson, Clark (he would have to chose to leave), Wafer, Smith, Liggins, and Nelson go then trade JJ and Hedo for literally no salary (very, very unlikely) it would leave us with only Howard, Davis, Richardson 1, Richardson 2, Duhon and Harper. They'd make about 40 million. That would give us just enough to sign a max player. We'd then have the MLE to use on one or two players, and the minimum contracts. It would be an interesting team.
But again, that's just not going to happen.