I've been reading this thread with interest. It's a cool idea, albeit fairly difficult.
Ya know Malik of Sindh, if you use the export_descr_units from our SSbQ mini-mod by Spoofa, it fixes the elephants hp issue, and it also raises a few other units armor ever so slightly. We'll just say that Kataphraktoi will be very hard to bring down without AP, which is good IMO.
I don't think Spoofa would mind if you guys used that as a base....just throwing it out there.
Rise of Persia is also another mod you might consider looking at, as they have an Indian faction.
If you asked they might let you use some units.
I'll be watching this, and hope you guys can bring it to fruition. It would be better if it came with an install.exe, so it could be easily uninstalled if the player wanted the Casse back (if such a thing is even possible).
Bootsiuv
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