Depends on how nicely you want to do it. The factory harness runs across the firewall at the base of the windshield then down to each kick panel where there's a few connectors (at least one for locks and one for windows, third for mirrors if you want them). The harnesses then plug into the distribution panel, it should already have power.
You would also need the interior door cards, lock actuators, window motors (easiest to buy the metal interior door panel), switches, door jamb boots, possibly some other stuff.
Not the hardest thing in the world but is a pain in the butt to pull the dash, if you want to half a-- it you may be able to tuck the harness along the bottom of the dash but it's not factory style.