I wonder if there is any evidence that Z-20KB has rotors that are foldable.
Its tailfins as previously observed (and here) have fold lines, and the rear landing gear wheel looks like it is intended to be able to "kneel" to be more compact, which would be consistent with the intent to be relatively rapidly transportable via airlifters.
If it has folding main rotors, it would allow for more rapid deployment and greater ease of transport, than having to remove and reinstall the main rotors, and would be further indications of intent for this aircraft to have cross theater deployability in mind.
Needless to say, Z-20KB if it has those features, would make a good basis for a genuine CSAR helicopter as well.