Trade Exception

Not an expert on the salary cap, however I'm pretty sure that the trade exception can't be packaged with salaries to trade for a contract over the 8.3 mill exception that the Lin trade created. The reason I bring this up is if this team wants to execute a big trade it would be tough to do without packaging either Terry or Pap which are key parts of the rotation.
Therefore, wouldn't it be advantageous to trade for a player like Brandon Bass or someone in the 8.3 million contract range so that come the deadline we have a contract that could be traded in a big salary deal without having to lose either Terry or Pap?