[john70t]

Do them in order: Front left (shortest line and closest to MC) until clear, front right until clear, rear left, rear right. i think.

Closed valve,
Apply pressure (slow pedal one time if possible, or Motive Powerbleeder, or MityVac vacuum at caliper which I usually prefer to use),
Suction should hold,
Crack open bleeder slightly until pressure almost drops so there is no air Backwash, close bleeder valve,
Pump again, crack bleeder, repeat ad nauseum.
Check reservoir regularly.

Before installing, you can get a short piece of brake line and curve it so it dumps into the reservoir.
Push the piston and pump the fluid through until the caliper is out of bubbles.
Then you know there is no air in the caliper itself to start with.

Good call on the 40yo four individual rubber brake lines, any of which could fail, and then the car won't stop anymore at the very wrong time.