And this is the issue - output is simply printed, so there is no possibility to translate it in normal way.

BUT - we have solution for this - the one which I pointed you. It will handle cases like this one. Please tell us exactly with which step you have troubles. We will help you fallow instructions or even modify it to more understandable

PS.
Are you sure that license of this mod allows to publish its code? If not then please remove it.