Has anyone else on this thread read the Otherland series by Tad Williams? You could make the mod from his twisted version of Kansas. Apparently Oz got jacked up so they were fighting in Kansas (the Tinman's robots versus the Scarecrow's Dorothy clones versus God only knows what in the Lion's jungles).
Remember Emerald City! Never forget! (I was under the impression EC got nuked).
If you could just make models that didn't have all those fancy movements, I think this mod would have a better chance. I can think of a ton of things to do, but without the units looking a certain way it's all for naught. I can't draw for anything, but I could come up with some concept sketches and background ideas, etc. But hell, I can't even find the time to finish my own mod let alone start on someone elses. Bah.