If you check my gallery i have a shoulder piece made. I was from scratch and made out of cardboard. If i remember correctly the dimensions are : 10L x 6W x 3H all dimensions are in inches. Or you can alwasy scale it off of something in the picture. hope it helps
I have supplies, but I lost all interest in the project, so I didnt even open my pack of glass. Maybe next summer when I am glassing my new chief helmet, then I'll just do the ODST at the same time, ebay it.