Master cylinder
Don't the bolts go the other way around.
In this photo the metal plate is the firewall and the master cyl has been cut off its mounting flange.
And the torque is 9 ft lbs (108 in lbs) per the factory service manual.
I'm not sure you need the other parts, unless the power brake bracket that mounts under the dash is very different.
These are photos of my manual brake firewall, is yours different?
And this is a manual brake, brake pedal hanger bracket
I have never done a power to manual swap so I am sure I am ignorant of some of the details