I don't remember exactly what was changed in en_menu.txt, but whatever it was it will have minimal impact if the whole file gets replaced by whatever modern versions of NYGM need to use. At most, some lettering here or there might not match a dial or so, but since you know already well how it all works youw ill probably not even notice it. So, if you like the GUI, keep it and simply overwrite the en_menu.txt with whatever file that works for the rest of mods