Suspension parts list. What's missing?

Pitman and idler arms can be a real puzzle, depending on what year model components are used. The ball stud ends where they connect to the center/drag link flipped from pointed up to pointed down. The splined shafts changed at both ends of the steering gears too. I can't keep those differences sorted in my memory. I suggest you measure input shaft diameters on steering gears and measure hex nut size on the output shafts before purchasing or installing a different steering gear.

The project car ('73 Duster 340/auto car w/ P/S) vs the parts car ('73 Duster /6 3spd car with manual steering). All being the same, the steering boxes should drop in with little change. Am I right?