As you know you just need a rightie and a leftie on the dr side and a rightie and a leftie on the pass side & you can turn the sleeve so as to have a rightie or leftie either way. they totally interchange (exc for the obvious LHT tie rod goes in the LHT end of the sleeve) & likely the OE order that SuperCuda said was how they were laid out on the assembly line for the easiest/fastest/automatic no thinking required assembly. Maintaining the OE order (at least in this case) is the good plan. If they ain't marked, left hand threads have an unmistakeable weird angle twist that you cant miss.
Yes but you mess up the alignment guy if you do it backwards