DFC:
Can you also plot the primary and secondary areas of the various holding and initial approach sectors you have described.
I don't think we are communicating. The immediately preceding illustration shows the primary areas for both sectors, as you call them. The secondaries are irrelevant to this discussion, but they are two miles wide around the holding pattern and on each side of the initial segment primaries. I chose to leave them off for clarity and to show the airspace that is protected for ATC purposes, assuming non-radar ops.
There are not significant differences between PANS-OPS and TERPs except for the visual circling areas. An airplane doesn't know whether it's inside a cloud in Germany or Colorado.
As to "turn areas" as you call them, there would not be any turn area construction for a turn at TGO absent being in the holding pattern.
This horse has been beat enough.