Just did my drivers door..here are some tips:
My hinges were pretty worn out. I thought I needed new (used) hinges so I hit the pick and pull. Got some tighter hinges and realized, once my old hinges were off, they could just use new pins. Beware, my drivers would not shut without me holding it up, so new pins will cover yours.....
Anyway, MARK your hinge locations!!!!! Use a sharpie. I did not, and spent a good amount of time lining up the door.
Also, be aware that the plate the hinges bolt to on the body are loose and CAN fall down in the body. I suggest using a magnet before you pull the last bolt out. One of mine, the tabs that hold the plate broke and it fell down. Not a huge deal, I fished it out with a magnet but be aware.
Grind off the head, use a long drift and beat the pin out. The bushings can be a bit of a pain, but just use a drill bit (smaller than the hole of course) and the bushings come right out. I learned this after beating on one for a while.....
they are really simple if you follow these steps. Also, do one at a time and use a jack to support the door and having a second set of hands helps.
I would also suggest using a long extension and wobble sockets to get to the bolts behind the fender, makes it MUCH easier to have the proper tools. Be careful not to round off bolts, use PB blaster or shock the bolts with an impact.
Good luck, I spend a few hours on one door, learn from my time spent. I think I could knock a door out in 30-45 minutes tops now.