I received answers to your questions, sorry if in some way they contradict anything that I might have said before:
Yes the 16mm mono English audio can be included on future releases.
Yes, the first grind house would be just the Italian release with Italian audio, it cannot be easily synced up with English audio as it is a different cut but if anyone wants to create a hybrid version with English audio dubbed-in while waiting on the proper release it’s not a problem from our end.
The proper American cut with original English audio will be released after the complete digital clean-up of the film.
Thanks for the answers. I hope someone can make a hybrid to hold over till the proper English release, because I don’t think I’d like watching it Italian dubbed 😉.