As coxylaad pointed out, we follwed your steps and the bar dimensions were wrong. I designed some more myself.
I’ve been offering up these plates to my axle and taking many measurements of camber and visually looking at the effects on toe (as I can’t measure that at the moment).
I have concluded that the outer adjuster is a waste of time. All it does is move the wheel about in the arch with very very little effect on camber (if the slot is vertical) or toe. In fact, on my corrado, with the adjusters fitted as you show, the wheel won’t even fit, it’ll just hit the rear bumper. Also, the bolts you list are too short to be used on the outside without much thinner plates.
So, as a solution to this i actually slotted the inner bolt on an angle, the easiest way to describe it is to to draw a line from the original hole up to the top of the b pillar or there abouts (hard to describe as my car is upside down.)
This way, toe and camber is adjusted at the same time. I had over 6 degrees of camber at max extents, I can get this to more like 3.5 degrees. and I can get it to zero camber at a sensible ride height, and only 2 degrees when running as low as i dare without the driveshafts hitting the chassis.