it depends on what you mean by reliably?
Most of the editors don't work because of the additions to Sod. I think.
Now you can cross reference the items file and then change the troops file by hand, it really depends on what changes you make and how many you make, you can change the module_troops file by hand. it has been ages since I have looked around though, and the py files may be source code, and I do not know if that is available to download.. if it is not then it will probably not be possible, as the 'old' source code for this version doesn't really exist anymore, I also haven't done a lot of modding in MnB, so I don't know the process for compiling source code and which files are source and which files are not...
That would require searching for the modding tutorials.
So the short answer for now may be no.. I have a copy of the module_troops.py file, but if (like other source code) it needs to be compiled with the whole shebang of files, then it won't do you much good, unless you can figure out numkber codes etc. in the text file version, using that as a guide....
Not the most helpful post as I am mostly guessing and am also sleepy...