73 Galaxie disk brakes question on a 70 Torino

So I came across a 73 Galaxie with disc brakes.

Can the spindles, rotors, calipers be used on the 70 model and replace the outer tie rod ends if needed? And of course get 73 rotors and bearings.

And I take it I need the Galaxie’s prop valve right?

The 70 currently has stock power front drums.

Thanks Mike