wogman, I'll be interested to hear what you come up with.
I had my front end aligned last summer by an old school hot rod alignment shop, and they made no negative comments about my front end geometry, and it aligned fine and it drives good. I don't have the car in my shop currently (as it is in winter storage) to check how much thread is exposed in front of the front nut on the strut arm, sorry. (I do have pictures of the car in my profile though)
The other thing I did notice is that it appears that your front tire may stick a little further outward than mine. Do you have a disc brake conversion, or is your 15X8 chrome rally wheel offset less than the 4" offset on the 8" corvette rally which I'm running?