Hello all,
if you are interesting in downloading only some language of traineddata from repositories (or different tagged version) have a look at tessdata_downloader[1] .
There is available new version with support proxy authentication and possibility to download files from Script subdirectory.
I just released version 1.0 [2] . I created this script in python, but also I was able to create windows 64bit "frozen" app so no python installation is need. If needed I can create also 32 bit windows version.