Door alinment can drive you NUTS. I had the same problem with a truck that ran though the 2 post lift backwards with the doors open (lets just say besure that you hook up the nutral safety switch before you try to start it.) It had even bent the cab, and pulled the bolt holes in the door itself. Depending how bad your is, I would start with (as said before) tring to bend the hinge by putting a socket on the bolt inside the hinge pocket on the a pillar, and push on the door. It would be real easy to make you problem worse and chip paint. You might want to ask a pro. It might not cost as much as you think. And someone that don't no much about old trucks might tell you you have to change the hinges and the door. The new generation just throws new parts at it.
