SH5 is broken, and I can't fix it

[Cybermat47]

I accidentally screwed up some files while updating TDW's patcher, and now I'm trying to fix it. I couldn't find clean, vanilla versions of sh5.exe, SHCollisions.act, SHSim.act, SHSound.act, SH_NClient.dll, SimData.dll, or CameraManager.act, so I tried reinstalling the game. But the installer won't recognise that I already have a copy of the game installed! So, I installed SH5 on another computer, to act as a 'donor'. But Uplay doesn't seem to have installed properly, and when I try to manually update SH5 to 1.2, it says that no install can be found

Would anyone be able to get me vanilla 1.2 versions of sh5.exe, SHCollisions.act, SHSim.act, SHSound.act, SH_NClient.dll, SimData.dll, and CameraManager.act, or help me in some other way? Thank you.

And I'm definitely backing up those files this time