16 year old needs help with disc brake upgrade!!!!

hey listen here im in you same boat im 18 and in my senior year of school and i did the same conversion on my 1971 dodge demon and what i did to keep it simple was brought my new lower ball joints(small ones) to the machines had him mount them on the jig and he machined .020 out of the mounting holes to spindle to reuse the mounting bolts so all you have to realistically have to swap over is the upper control arms and the spindles and reuse the steering components and lower control arms from your dart cause there is no need in making it more complicated for your self than it has to be