Time for a few more updates. I have completed the front end. The control arm adjuster "ears" were fine right where I had them. With the suspension at full droop, I installed the arm as far down as it could go in the crossmember and put maybe three or four threads of the bolt showing. When I put the car on the ground, it was too low but reaching under and cranking in a few turns and I'm back at my original ride height.
I set the front Tarrett bar to the softest position; I don't know whether at that setting the new bar is even as stiff as my 1986 stock (larger than earlier turbos) 22mm bar that I removed. In any case I thought I'd start there, and I took the car out for a quick 5 mile spin. I must say I need to move on to the rear refresh sooner rather than later. The car was definitely smoother in hitting road imperfections, which is a bit counter-intuitive since I removed rubber bushings and replaced with teflon-like bushings throughout) and the front end was definitely firmer on low-speed dips and whoops in the road. But the car still waggles on quick right-left, right-left jerks of the steering wheel. Of course the rear suspension is 27 years old and has 100k miles on it, but if there was ever any doubt, the rear suspension is as important as the front in terms of responsive turn-in. So I will move onto the rear work next week rather than wait til winter.
I also jumped at the opportunity to get some very nice Forgeline's from a friend of Rey's. They are 17s, which to my eye still fit the era of the car while offering a stiffer sidewall and a wider tire choice than my stock 7x9 16s (albeit not as wide a choice as 18s).
Right now as Rey said above, I'm all over the place. One of the bathrooms is completely under renovation to restore balance in the household given the 930's recent updates.
And now we're off for some time upstate for some ATV and 2nd Amendment exercising. So the car will have to sit a bit more.