DoctorDiff has everything you need. There’s a “front line selector” that lets you pick all of those options- ‘67 barracuda, manual master cylinder, 73+ slider disks, and brake hoses for either the front or rear mounted position for the calipers.
Mopar Front Brake Line Selector for A/B/E Body
For a manual disk set up I prefer to use a 15/16” master cylinder, which you can also get from DoctorDiff.
Mopar Aluminum Master Cylinder Kit
If you didn’t have a manual master cylinder before you will need a new master cylinder pushrod. If you had a manual master cylinder before you can use the old pushrod. A stock one works fine, or DoctorDiff sells an adjustable one.
Mopar '62 -'70 Adjustable Master Cylinder Push Rod
If you have a sway bar, or intend to use one in the future, it will be best to have the calipers mounted to the rear. There are ways around that and it depends on what bar you run, but mounting them to the rear is the easiest. All you have to do is swap the spindles left to right, that way the bleeders on the calipers stay on top. Mounted to the rear you can use ‘69 Camaro brake hoses, or just go through the line selector I linked above and select the right option for the rear mounted calipers.
Think that was all your questions.
@DoctorDiff has everything you need. And if you buy from Cass he’ll be able to help you with any other questions that you have, he knows what you need to do these brake swaps and has great customer service.