Sounds to me from what Mike is talking about is that this is a hobby that means a lot to him personally yet it is not of any importance in the real world.
If he works in an official capacity as a composer than his credentials are not in film restoration and preservation.
He is no Robert Harris and he does not have access to the negative in the Lucasfilm archives.
He does not have the raw stock and select takes, the IN or IP, the sep masters etc.
Nor is it in any way possible he has access to a pristine technicolor print that has been screened not that many times like GL archival copy.
Great as the technicolor prints look when screened they are not a good source for a restoration, though i am sure others as well as myself would not mind a BD scan of the Technicolor print.
It would not be what you would use for a restoration, except maybe color reference? A restoration would mean having the oot in exhibition form for generations to come.
Not just a home video release.