Reaper Miniatures have recently brought out a couple of cavegirl models. They aren't exactly up to Copplestone standards but the one on the right is quite Raquel-like and might be worth getting if I see them. The one on the left looks like it was done by a different sculptor and has rather fat legs! They sell Reaper Miniatures in Orc's Nest so they might get them, I suppose. They are usually a bit bigger than 28mm but the Copplestone figures are quite large so it shouldn't matter too much.