My mistake for the confusion regarding your OP.
If you knew what it looked like since you took it out, looks like you should have consulted with @Pighead before spending big bucks with CCOT.
@projectTuRD
As @B y r o n pointed out, the original routing of the hard line went from the master cylinder to the tab with with the whole in it:
The hard line was supported by the tab, and the female end of the flex hose was locked in place with a clip.
This is on a '73 model, but I...