Throw this plan out there to Durant and see what he says.
Step 1 - Convince Durant and Horford to team up with Boston, which would require us waiving Amir and JJ and letting Sully and Zeller go.
Step 2 - Trade for Ibaka with something like Rozier, Young, Hunter, other salary filler, and the Brooklyn pick (other 2016 picks if needed, too). OKC will most likely blow it up if Durant signs somewhere else, especially with Westbrook and Ibaka being free agents next year. I'd expect them to trade Westbrook to LA for something like the #2 pick, Russell, and whatever else it costs.
Step 3 - Resign Turner going over the cap and using what little cap space we have left.
Step 4 - Attract vet minimum players ring-chasing (Martin, West, etc.)
That leaves us with the following roster:
PG: IT, Smart
SG: Bradley, Turner
SF: Durant, Crowder
PF: Ibaka, Mickey
C: Horford, KO
That's a ridiculous two-way roster that is super balanced with excellent shooting, perimeter and interior defense, and the strongest bench in the league. Add in the fact that we have an excellent future with cap space and draft picks, and that's a potential dynasty for years to come.