Regarding Shada, I am not aware of any new camera footage from 1979. My thoughts are that any completion would be based on either animating the missing scenes or the full thing animated. I believe he did the former as dr who animator did.
I think you'll find that the attempt to animate Shada succeeded. The attempt to get it released failed.
Let's not turn this into a Levine bashing thread, please.
For what it's worth, I greatly admire Ian Levine for his work. He has no doubt put a lot of effort into it. It is a shame he did this without getting it funded.
For me the results don't live up to the expectation. I found his U-toob preview very disappointing.
The basic idea remains sound. Would it be possible to use existing stills as key frames and use CGI to fill in the bits bettween? In some cases there may be insufficient stills, but at could reconstruct some parts.