Keep in mind that Curry will be a FA next season. So both Curry and Durant will have their salaries jump next season.
Livingston will be a FA. He will already be 31, but it is likely he will go where the money is because he lost his prime to his injuries. Iguodala is a FA next season, as is Bogut.
They have Klay under contract for 3 more years and Green for 4, so both will be bargains. That means that they should be able to keep that 4 together for 3 years if Durant and Curry re-sign next season. If the cap hits 108m, we can assume Curry will get around 32m (30% of cap as designated player) and Durant will get similar based on years of service. No other player has guaranteed money past next season.
It will be interesting to see how they fill their bench. Middling players are getting big contracts now and like still will next season with cap space that needs filling. This year and next will be the hardest years to fill a bench with decent contracts. We are actually fortunate to have to many picks because they are cost controlled in a time of exploding contracts. If we draft more developed guys, we could use the draft to get our role players without paying out the nose until salaries normalize as people fill their empty cap space.
The easiest approach for GS is to use Bird rights to retain their own players and to just take the luxury tax hit. They will also likely be in the market for minimum contract vets looking for easy rings.