[eqagunn]

- Extracted the game to temp folder.
- Downloaded colin_dirt_eng.zip and extracted to same folder.
- Ran colin_dirt_eng.bat and waited till it finished.
- Removed colin_dirt_eng.bat and i6comp.exe.
- Removed readme files for removed languages.
- Edited setup.ini as described.
- Replaced DirectX with the latest one (June 2010).
- Created a Crack folder and added patches 1.21 and 1.22 to it.

Resulting size was 4459 MB. Splendid.

Thank you very much pakrat2k2!

EDIT:
I tested the installation and game works great.
Installed game takes 9.93 GB (10170 MB) of disk space.