I think if the Cavs wanted to have the best championship roster possible, it would be to have Cam Johnson and a solid backup center in Richaun Holmes.
Cavs Roster: Garland, Mitchell, Johnson, Mobley, Allen
Bench: Ball, Strus, Wade, Nance Jr, Holmes, Porter, Merrill, Tyson, proctor, Tomlin, and travers.
For Denver: Getting Hunter and a second round pick doesn't change the team too much, but Hunter would be a better defensive fit for the team and can still space the floor as well and get a second round pick at the same time.