Don't believe everything you hear about lack of replacement parts for Pacers...
You may have to look a bit, but NOS
Pacer parts are out there.
Auto Zone lists new lower ball joints, steering racks, shocks etc,
Kanter has about everything else. Many Jeep/Eagle dealers still have a ton of AMC parts.
GM spindles - done by a friend but it ruined the truck, took about a square block to turn the thing and caused lots of bump steer. Don't do it.