Correct. Like Oktavius mentioned, there are no factory adjustments for those, only toe is adjustable. That is why I am considering adjustable control arms so I can tweak the caster.
The odd part is that the camber angle is out of spec. Why would that be? It turns out that two of the alignment shop guys had owned WJs in the past and had experience lifting and wheeling them (one of them even offered to fab up a Flatland bumper for me!). They mentioned that both of their WJs had the same camber problem because the axle has a tendency to bend but you can get an axle reinforcement kit to stop that. I guess maybe the Dana 30 just isn't tough enough to hold up the WJ over the long haul?
Flatland 4x4 sells blueprints but leaves all the fabrication to the buyer. An interesting option if you are into building your own. https://flatland4x4.com/99-04-jeep-grand-cherokee/