No, just no.
Vince and Z-Bo have no value to other teams. We over paid them to be babysitters. Taking salary off the table, it's unclear whether anyone would want Z-Bo for their playoff rotation. But, why would anyone construct a trade that moves 12 million of prorated 17-18 salary for Z-Bo? And be on the hook for a season year of that contract? Nobody wants that!
Hill has played better, but right now, nobody wants him at 19 million for the 18-19 season. Nobody.
Kufos is still fairly productive and has a fair contract (some would say good, but I think he would sign for close to 8.3 if he was a free agent right now). So, that's a plus. But, the league is full of big men that most teams can't give away. The center market is depressed. While Kufos would give a contender depth and a back-up center, it's unclear he'd bee among the top 8 guys for anybody making a run at going deep in the playoffs. So, teams would take him for the right prices but certainly aren't looking to break the bank when replacement level backup centers are readily available to absorb for very little.
The Kings broke the 10 pick from the 17 draft and 7 pick from the 16 draft into several chances. Fox is their only blue chip prospect. As such, a franchise with a horrible record for developing has charted a path of developing non-blue chip prospects into an all-star, quality, starters, and high end depth. They hope to do that in a locker room that has turned toxic each of the past 3 springs.
Trying to make plan A work, while worrying about juicing and flipping the value of the vets along the way would be a bridge too far for well run and owned teams. And the Kings are neither well run nor owned.