I've done it a couple times. With the motor and trans pulled I would guesstimate about 4-5 hours. I do it by myself. Lets see, first remove the header panel,radiator support and front and rear bumpers. I assume the AC is disconnected so take the condensor out with the support. Remove the 10 remaining body bolts. Remove the intermediate steering shaft. If you are still running a powermaster disconnect the lines. If you have vac brakes than just disconnect the MC and leave it hanging on the lines and you wont have to rebleed the system. Disconnect the park brake cable and pull it from the front frame attaching point(PITA). Remove the fuel tank. Disconnect anything else from the body like exhaust hangars and lift away. There is plenty of room to leave the hood on so if your body is okay you dont need to realign any body panels. I do this all of the time with the interior in place so I know the average engine hoist can handle the weight. Sometimes the challenge is trying to lift the body high enough.