Nearly there with my batch of 30 horses. Don't think I'll attempt this again; I've found the slow progress has really messed with my motivation. Just got iron bits to paint and bronze ornaments to highlight, and not forgetting the animal skins.
I've also taken a quick shot of the first batch of riders to go with these horses. These will allow me to expand my current unit of 12 Agema to the two units of 9 needed for Raphia.