Reference:
ToyoDIY.com
Conceivably if I could move 90105-14081 away from the chassis of the car with the use of a spacer then I could move that entire arm away from the car and let it pivot on the point where bolt 90105-14084 pivots on. This is the only way I can see that I could adjust camber.
But it would require modification to the vehicle which is way above my head, I will pass it along to my local mechanic anyway and see what he says.