My 70 Duster is bone stock with front and rear drum brakes. What are all the parts i need to use the willwood brake disc kit? Looks like I'm going to need the upper control arm and lower ball joint kit. I was thinking of just getting the Dr. diff rebuild kit which comes with the upper control arms and lower ball joints. So if i want to keep it manual front discs do I still need to buy a different master cylinder and proportioning valve. And if yes, then that means i have to re do all my brake hard lines as well correct?