In all honesty I just don't see the point! :O I mean, aside from the occasional telephone pole silhouette, there were no cues that I was watching 3D content. And the rapid flashing that a lot of the fireworks were doing made even the slightest sync disparity between cameras glaringly obvious.
Virtually identical results could have been achieved by using one camera feed duplicated to the opposite eye and shifted in parallax to look far away. Possibly better, because there would be perfect time sync. And the results/effort ratio would have been more proportionate.
I have to commend you for your time and effort and financial investment though. I apologize that I had to criticize the whole thing, but as an experiment it was invaluable for you and everyone else, and I thank you for sharing.