if you're unsure where the gear is now, i'd do a full reset-- bring it up to #1 TDC firing, check the balancer (or secondary mark) and then install the gear with the slot facing the intake bolt per the FSM. drop the distributor in and confirm that the rotor is pointing to the #1 terminal in the cap.
normally i'd say just yoink the valve covers and prime it till you get oil up top. but because you've got to reset the gear you don't have anything to lose by turning the motor over.
you don't need the plugs and it'll make it easier to turn over with them out. you should take the valve covers off to confirm that you have oil. the gauge can be helpful in assuring you have pressure but is not entirely necessary.