Hi,
To be honest, you should use CineMachine, there is no point in trying to do something that is achievable using CineMachine, have you tried?
You keep PlayMaker dealing with your character, bu you completly rely on Cinemachine for the camera control, you will be able to create very nice camera behaviour (check out their examples to get a glimpse)
Let me know if this is a viable option for you.
Bye,
Jean