Why do you need the older patches? Are you installing from the original CD version?
Yes, I like to play the most vanilla version I can get but with TrackIR support. From what I read the 1.6.0W8 was the version that introduced TIR.
I don't think those patches will be hosted anywhere now, so you'll need to hope someone has them stored and can upload them.
That's my hope, I was able to find 1.6.0W14 thrugh the Wayback Machine, but still if anyone has that W8 version I would be thankful if they'd share it.
If you get the digital version from GoG.com, it's been patched already and includes 1.11.1
Yes I know, I have that version as well as CD reatil version. Both retail EEAH and EECH works great on Windows 10 with dgVoodoo2 btw.