ok thanks. Ya i cant build it in shop class any more because the principle came into are class and yelled at our teacher for not having a class plan. So im going to be building it at home know. Im going to go trace the wood and if i have time to cut it out to night. So the ribs can be easily cut out with a xacto¿ O ya im going to pick up some medium/thin ca and a arrow shaft today. So i should be busy for the next couple of days. I will be take picture as i go a long to.