Replacing door hinge pins and bushings
do you have to remove the fenders to get the hinges off
Nope. :glasses7:
Unbolt the door from the hinges, unbolt the hinges themselves from the Pillar, there you go. No need to touch the fenders.
On another note, I find a Transmission Jack works perfectly for removing & installing the doors by yourself. The jack I have has a "V" in the middle of the plate, throw a blanket or something over it, jack it up until the bottom edge of the door sits down into the V, unbolt the door and roll it away from the car.
When I replaced the door on my '74 Duster, it took me about 3 minutes to remove the old door, install the new door and adjust it, using the transmission jack.