I offered to write the .dm file for Legowarrior so he could focus on unit descriptions, sprites and brainstorming. I've already got a working version done but it's only got placeholder sprites and unit stats for now.
I had a thought concerning the Miko and Saigu sprites. You can probably steal the sprite of one of T'ien Ch'i's heroes (
http://dom3.servegame.com/wiki/Immortal_(Ho_Hsien-Ku)). As is it might work for the Saigu (I'm not really sure what they're supposed to look like in the first place), and if you edit in a long bow then it could work for the Miko as well.