My new project and problems

I got this car, it's a 72 swinger and is really nice. New engine, polygraphite upgrade kit, shiny painted parts and all.

My issue is that I can't get the front brakes on and am low on money and time. They are the 9" drums, and I'm giving up on them.

For the disc setup, I know I need new spindles and the brake setup. What about the upper and lower control arms? Do I need new ones?

And how inexpensive can I do this?