Vahktang
Donor
Oh, thank goodness.Well, I'm not the OP but my definition of the Neo-Inca state is what existed after the fall of the empire and the death of Atahualpa.
I thought you were going to say until modern times.
Until the end of the century should not be that hard.
Close the borders to outsiders, reinforce and upgrade the passes, abandon the coast.
The Inca Empire is a tiny, sick country by the end, an easy push over, but, conditions have been met.