Big Block headaches

An oil pump is easy to change??? In a A body??? Are you serious?? I had to jack the car up and put it on an axle stand, disconnect the headers, undo the engine mounts, jack the motor up with 2 different jacks, take off the bottom radiator hose, take off the engine torque strap... several grazed knuckles and some other scratches later and thats just to get it out...
How the hell ,did you mount this combination together?..