I've seen this time and time again; where did the respect go? I remember when someone could ask a simple question around here without getting attacked. I don't mean any disrespect to you VGR, I know you mean well, but lighten up, please. A tool of this nature would be handy, and convenient for a modder to use, if it exists. I am not sure if it does or does not. Asking after it shouldn't be a problem, you don't have to show them aggression.
Now Omega Res Novae, I do not know if such a tool exists, I am inclined to say it does not; if none of the tools in your list worked. I was under the impression img2tex was able to convert them back and forth rather effortlessly, though; perhaps separate them into smaller groups when mass converting?
I don't know anything about making batch text file, thinger ma jigs (yes, splendid wording I know
). I do think it would be possible, as I have seen it used with success with several other mods on this here forum
.
Good luck!