If you go on YouTube and search “squarebody door” you’ll find dozens of videos and none of them cover everything. But it is time well spent to watch before you start messing around.
For some adjustments the fender has to come off. For some it’s removing the parking brake pedal/release assembly. We can see welding where the striker pin is. Most body shops will charge 4-5 hours per door, then shave time off IF it was easy.
If your door is opening/ closing ok- and the hinge pin doesn’t have free play, I question getting into it now because you have multiple other things to fix before the door alignment.
The reason I said striker pin first - once there is no free play in the bushings- that is where the adjustments start and getting the door to latch/unlatch is the basic requirement. Everything from there is to stop water intruding and finally appearance.
I’ve seen guys spend $850 because the park brake issues that can arise from removing and reinstalling them. Glove box side tends to max out around $250.
All provided the one bolt from the inside isn’t rusted or stripped.
Finding the one piece hinge shims might be hard. I know around 2002-2003 they weren’t available so everyone used the individual shims like is used for the fenders.