In The Republic do Plato's guardians have free will?

Plato had no trouble with free will. Especially not within his guardian class philosopher kings. Perhaps you can explain to me how Plato's philosophies would be related to free will within this context.

Plato believed that society should be ruled by Philosophers who would also have to have had training as warriors and that the next highest class should be Artists but them he did not trust for the higher offices of government! Somewhat refined in his logic and insight he wove a long winded system for utopia and the at the end having convinced the crowd he had been lecturing went about demonstrating how even his ideal society could be easily corrupted!

No. They charge for it.