Create a project group on here and add me. Id be glad to help on the project. Dunno if Ill have time for doing anything specific. But im fairly well experienced with map editing in WC3 and SC2.
Id be glad to offer suggestions on how to do things. Or where to look how to do things.
In regards to how tank tread animations work. Im not entirely sure.
You should be able to export the model and take a look at the pre-texture model and tell if the treads are actually part of the models, animation or not. From the looks of it you already have some 3d model artists as part of your group.
Hit me up with questions in PM if you would like. Or start a new topic that Specifically asks what you need to know.
BTW if you do create a "Team" on here you can create sub forums under that only allow team members to post on. I think that would be a good bet for you if you have alot of project members alread. I would think theres a couple of you trying to switch to learning the SC2 editor. I honestly believe anything you could possibly want to do for an RTS total conversion can be done in SC2.