Been there, done that...Man, were they EVER stuck!.
What worked for me...............Rolled a floor jack under open door and used short 2x4 tween jack and bottom of door...Placed jack as close to hinges as possible..pumped up a little on jack till body lifted about 1-2 inches, then rolled jack back fourth to work door open and closed a little, and as doors rose, I pumped jack...really easy like..
Once doors were off, I polished the door hinge pins with emory cloth and applied a little anti-sieze....Doors come off easy now.
Now I just open doors and lift.
A guy called Blaine that sells black magic brakes is a member of a co-op that also sells bronze hinge bushings....At least I think they do.....Once you get doors off, you might wanna google them up.