Most of the modders are a bit busy with the two Aztec mods and other projects, but you can still post you plans, and share your other work here to find more modders to help you. I am currently converting the AOE III Aztec buildings to AOM, for my own Aztec mod. Creating a whole new civilization or culture is a great undertaking!
ANd more people join on the project after seeing what's already there.
If you are ok, with re-using assets, I can help with the icons after I am done with my own project.