removing upper arms / spindles

You can leave the calipers, rotors, and spindles, all together. You will need end wrenches for the upper arm bolts since sockets dont go there easily.
If you'll loosen the nut on the upper ball joint and split it from the spindle the torsion bar tension can be your helper. Then back the balljoint nut the rest of the way off and let the spindle drop, relieving any remaining tension.
Back in about 1982 I went to a gold Duster resting upside down in a field and removed the front disc parts. I didn't have any sockets. I did have end wrenches, length of pipe for cheater bar, diagonal pliers, pickle fork, and a big hammer, gloves and safety glasses.
My length of 1.5 inch black pipe ( I call it my brother ) is hammered to oval on 1 end so it fits over the open end of my combination end wrenches. Have fun.