Tyreke Evans and Cousins for Rondo.
I wouldn't even do that. I think Rondo is probably a top 10 player in the NBA. It would have to be a Chris Paul (resigned) situation for me to want to move him. I wouldn't even take Derrick Rose or Russell Westbrook. That is how high I am on Rondo.
As to Sacramento's need for a starting caliber SF. I would be will to include Green if they take Bass instead of Bradley. Something like Green/Bass for Cousins/Johnson. The $ adds up and Johnson is on his last year so it's not a huge investment (and it really frees up our situation next off-season).
I think that's really overstating the percieved value of our guys, even if you included Bradley, Melo, Sully, AND future picks.
Cousins is primed to be a top 5 frontcourt player in the next year or so, and he is still super young. Nothing outside of a top 5 pick or a probable franchise cornerstone will pry away Cousins. You're talking Kyrie Irving, Anthony Davis type players. At least if Sac isn't willing to be swindled.