Apparently there is still at least one obstacle. Mine had been coded from the time this first was attempted.
Seems ok in the video here...
http://www.bimmerfest.com/forums/showpost.php?p=9495052
However...
After manually aligning the lights to spec, it's become clear via real world observation and ISTA/P diagnostic procedures, they are NOT working properly. The GFHB LED array fails to dim correctly (swiveling works however). Only part of the tunnel is created, and attempting to teach in the LED arrays fails as the VIN and Variant are affixed despite attempting with modified FA and FP.