Just stumbled upon the video, very impressive.
One question though, why not use SoftICE debugger from the era?
https://archive.org/details/NuMega_SoftIce_Windows_3.2
Serial number "1900-713155-77"
https://www.codeguru.com/visual-studio/ ... h-softice/
Also for MSI changes, instead of ORCA, there's InstEd