Mod question

[Hyvel]

I'm getting really tired of the zero loss games in the KB series, and would love a change of pace. I was wondering how hard it would be to create a mod which does 2 things:
1) restore all your armies after the fight
2) increase all enemy leadership by a certain factor, e.g. x2

The idea would be to tweak enemy leadership until you can just manage to beat an enemy before you lose your entire army. I think it would allow me to use units I otherwise never use, creating a fresh new game.

As I've never done any KB modding, is there any KB modding veteran than can help to point me in the right direction, or would something like this be too complicated to achieve?