Redditor Flametz managed to make a mod that installs this garage in your Test Server client:
Note: you have to buy premium account on the TS, however since WoT gives you test gold to play with it won’t be too much of a headache.
Download:
https://drive.google.com/file/d/0Byz6CJCkJOYDZnY3MS1kOW9kYlk/view?usp=sharing
Installation: Unzip, then dump it under (for test server only) res_mods/9.15 Common Test/
Should look like this in files: