First of all, let me just thank you again for (still) being willing to support Whonix by translating.
Now, sadly what I've written in that thread still applies as much as it did back then. Translating MediaWiki is a tedious task at best, which is why I'm still working on getting an alternative going. Sadly, my initial prediction of "a few weeks" was a little to optimistic.
However, you seem to have been in the "translator class" ever since october 2015, when you first asked whether you could contribute by translating. Like mentioned in that initial thread, everything should be translatable for you as far as I'm concerned.
So, if you would like to translate a page or two, you are welcome to do this and shouldn't face any issues with it, as far as I can tell.
Furthermore, while a lot may be "lost in translation", as far as I can tell, your current guide seems to be very thorough and well crafted already. However, I'm not sure whether the manual configuration of network settings and torrc is really a necessity. As far as I can decipher, this is done to circumvent censorship measures. Is that the case?
Have a nice day,