Be sure you understand how to hand piece before you start. It is not the same technique as is used in machine piecing. For example, with hand sewing you sew corner-to-corner, not edge-to-edge as in machine quilting.
You can rotary-cut for hand piecing. If you want a marked line for your sewing, you can make a template to place on the rotary-cut piece. Either mark all around it with a pencil, or just mark the corners. Many hand quilters simply "eyeball" the seam allowance between the corners.
Check your library for DVDs. I learned how to hand piece by watching a Jinny Beyer DVD from the library -- very informative.