I'm no character artist, but just for fun: 4 days high(1 day base mesh, 3 sculpt?), 2 low, 1 uv, 1 bake, 3 texture, + 2 days slack = 13 days or 2-3 weeks Personally i think its doable in 2 weeks if you're focused. That is of course under perfect conditions without needing major reworking for the client. Otherwise the…