Mod Questions

[DarkStar]

I'm looking over doing a Mod for the game.

I see quite a few .TXT files I would need to change. Do these need to be changed by hand using a Text Editor or does the tilegen, and the other command line arg do it for me?

I know I would need to edit some of them by hand, but was wondering mostly about the terrain and map files.

There seems to be quite a bit that needs to be changed, can someone that has made a Mod give me an idea how much work/time we are talking about.

In my Mod I would like to add new items, monsters, and have an adventure that contains 2-3 towns, a wilderness, 4-5 dungeons each with 3-5 levels.

Maybe I should start with something smaller..