Stumbled across this video series about a 911T restoration done by the factory.
there is a whole series that documents the restoration, just search "Revive the passion"
https://www.youtube.com/watch?v=L5Jnu2M8lcs
https://www.youtube.com/watch?v=_cXLuDlsbFI
https://www.youtube.com/watch?v=VIbinItjMYI
https://www.youtube.com/watch?v=FjGluqXusqc
https://www.youtube.com/watch?v=o-xJx2aJkzo
https://www.youtube.com/watch?v=kPyL-UN1Pjs
https://www.youtube.com/watch?v=iB0tq6e5pWo