First step to restoring my 1974 Duster; Front End rebuild (coilovers needed?)

Nice, glad those mods worked out for you! I agree on better shocks, I like those KYBs for controlling wheel bounce on trucks and SUVs with high unsprung weight (big heavy wheels and tires and/or heavy live axles) but they're overly stiff and rough-riding on cars. Unless maybe you're running 33" all-terrains on steel wheels lol.
Or "squishy" torsion bars. lol
But yes, I agree on the QA1 control arms over magnum force, QA1 also makes some decent shocks. Bilsteins from PST | Car & Truck Suspension Parts | Performance Suspension is also my top choice.