eccentric cam and ball joint to spindle angle

You are correct. The bump stop on the car defines which side the UCA should go on (sits on flat side). The spindles are not symmetrical, so it makes a difference which side they are installed. You can't compare your spindles to lilcuda's since yours are the later BBP disk ones. People have mounted the calipers either in front or behind, depending on interference with a sway bar and to move some weight rearward, so the spindles can work either side.

Re setting the cam bolts. You generally want to get as much caster as possible, which means moving the upper ball joint center as far back as possible. In more words - get the line thru the 2 ball joints hitting the ground as far in front of the tire contact patch as possible. That means adjust the cams so the front bushing is as far out as possible (away from engine) and the rear bushing is as close to the engine as possible. Just look at the cam lobes. You can do even better with offset bushings, but too late for that. Of course, you also must get the camber correct, which is how much the tire leans in or out, which will counter-act the best caster. Some people play with the bottom for more caster by using an adustable strut rod to pull the LCA forward. Most important for safety and tire wear is to get the toe-in close before you drive to an alignment shop. You can get real close with a tape measure on the tire treads. I don't even go to alignment shops, but I'm a cracker.