To be fair, the Amani have a solid foundation already existing in terms of customization, and the models should be able to wear armor. Maybe the body type 1 models would require armor models to be tweaked to avoid looking stretched, but as both body types are using existing rigs, they should be armor-compatible regardless.
Really, all they’d need to do is work on more customizations. Add some warpaint, warpaint colors, tusk options, maybe tusk decorations, and expand on the existing categories by adding new eye colors, more faces (maybe with some better noses), etc… More hairstyles would be a must, but they could make use of modified Orc hairstyles to cut down on development time/costs.