Taking apart the front end on my 70 swinger

So, you're putting '73 disc brakes on a '70 that has drum, correct? And also going from power steering to manual steering? In that case, you'll need a '68-72 pitman arm (P/S and Manual are the same those years except for the BB cars), you'll need the upper control arms off a '73-6 A-body, an adaptor for the steering column to go from a P/S coupler to a Manual box input shaft or a center shaft and coupler out of a manual steering column, and the '73 disc brake proportioning valve along with the other disc brake parts. You may also have to do a bit of plumbing to connect the hard lines.