You are my hero. I have been craving HD versions of those US versions. I tried to do my own HD restoration of Zero, but had major problems with frame dropping/ judder.
check out a sample here https://www.dropbox.com/s/qy6p3vgj3urb899/Invasion Of Astro-monster (1965).m4v?dl=0
I was also very distracted by a problem with the japanese HD copy. It has a problem with every edit in the film print they used.
Warning, once you see it, it cant be unseen, as it plagues the entire movie. Look at the bottom of the frame.
