Wow. If this is true, that's the whole serial. Well, except for the missing audio. I hope they get John Guilor as Hartnell's voice double like they did for the "Planet of Giants" reconstruction. As I've remarked before, I find his Hartnell impression uncanny.
I assume that even with digital restoration, the image quality from a homemade telecine won't be that great. Still, to have "Marco Polo" at last would be amazing. I wonder if this fan has any other surviving films -- if the story's even true.