Of the realistic proposed deals out there I think Kemba and Batum for #8, Hill, and Jr is the least favorable for the Cavs. Just the flexibility alone of Batums contract hurts building the team moving forward. For me it's a last ditch trade to do.
Go after McCollum and see what Portland wants us to take back. Offer same package for Kemba, MKG, and Marvin Williams. See if the Wizards want to move either Wall or Beal.
Wait to see if the Clippers want to move up in the draft to trade #8 for #12 and #13. #12, JR, and Hill for Kemba and Batum at least then give us one more chip in the player at #13 to trade if things go bad.