...After squaring and leveling off the 914 chassis on the Celette test bench, and also taking several careful measurements with the laser system, it was determined that the 914 chassis had a 2mm to 3mm deviation from the front to the back, and to my relief, no adjustments were necessary.

This is actually extremely good news, as I was able to save a few hundred dollars, actually, possibly even thousands! If the chassis had to be pulled several times to get it within specs, it could have easily created other issues or concerns in more areas as the unibody is pulled and stretched. Thank you Eddy!