On my 73 charger I couldnt get them out with out ruining the paint on my door.
1. Drill out spot welds at front and rear of door were door skins pinch over. Should be six to eight per front and rear pinches. This will release crash beam.
2. Cut into 3rds to remove out opening on inside of door. I used my torch because couldn't get a cutting apparatus inside the door.
I took 38lbs (total for both doors out)!
If you need more info ask.
I will say that the hole where I drilled out I never have filled. THough you cant see them from outside they are fairly large 1/2" or so.