messing with origonal RTW

[Vasiliyi]

unit stats, sizes, colors, whatever i can figure out.

[Aemilius Paulus]

unit stats, sizes,

You can mess with that all the time and not cause anything. EDU is the easiest thing to edit. I do it quite often. So I would not worry about this. Just be sure you have a backup. And it is OK to use MS Notepad for this too, despite what some people will tell you.

colors, whatever i can figure out.

Colours? I never went there, but from the files you are going to have to edit, it sounds relatively easy to me. Lots of people edit stats and colours. Now as for "whatever I can figure out", I cannot tell you...