With that either the top hinge needs to move inward slightly (if there’s any adjustment left), the door is tweaked, or the bed is tweaked. Possibly due to the roll bar like I think we were discussing before.
Since the front fender is slightly workable, the first order of business would be to fine tune the rear angle.
Not sure just how to verify that the b-pillar is “vertical square” to the body but there must be something to reference.
Sounds fiddly. Like you have to go back and forth at every other step.
Nothing like job security!