I was thinking to make p2 bio from best available styrofoam, i found the material i like, i will probably use same method you used but after finishing cutting the rough shape i wanted to sandpaper it to as close as possible to its shape and than coat it over with filler,sandpapering it to wanted shape. Im not worrying yet about paint job. Do you think my method will give result? Im aming for 1:1 bio as detailed as possible... btw this will be my first sculpting experience. I whould also need measurements for p2 bio, will check google but i couldnt find much last time i looked.