(I deleted what you are quoting before you commented.)
I added these two babas because of a misunderstanding and I'm not insisting on keeping them. I asked to add a stone baba here and I interpreted your answer here as an approval, I guess because I thought stone baba are just the female sitting ones, not the male standing ones (I guess because "baba" in slavic languages refers to a female person). So no reason for hard feelings.
So if you think they are ahistorical and others agree to get them out, no problem.
I don't know much about the .CEM format. From my little understanding though, a tool exists that will allow you to export to .CEM from Blender.
In Pyrogenesis, the engine behind 0 A.D. meshes only support one material at a time. So for that reason and for modularity meshes are split into lots of pieces. For static meshes I wrote an importer from the game to Blender assuming you use the development version of the game.
For animated meshes, I would not recommend using the blender importer, so it's better to use the blend files, provided they exist in the art repository
As I said, I started this over a year ago, so when I took it back up, I might have forgotten details about earlier discussions. As far as what I remember, although these stone babas aren't necessarily scythians, the scythians had similar ones too, so I figured if there's not much artistic difference, we could use a HP model from later times.
Sculpting is a ton of work, so if there is an existing similar model, it's always welcome, even if it's not 100 % accurate. What about the other sitting baba, is it also historically wrong?
Anyway, I spent a lot of time to recreate the other steles you suggested here: https://wildfiregames.com/forum/topic/20550-civ-scythians/?do=findComment&comment=561420 I'm open for references and historical advice