How about just trying to get Barbosa from Phoenix? They're always in penny pinching mode, and while Barbosa isn't really a youthy project anymore, he's still young. Also, we can still keep Ray Allen if they're ready to admit they need to rebuild and save some more money. Another bonus with this is he can take a huge load off of Ray and probably Paul, too. And then we have instant offense off the bench, and while Barbosa would be in there with Rajon, that is an amazingly quick backcourt.
If we can get him for expiring deals, then it certainly beats trading Ray unless we were getting Wade or someone like that back in the deal.