Trace the template onto card stock or cardboard, or whatever you are using to make your template. Then tape two pencils together, you might have to try different pencils or pens markers whatever to get the leads 1/4 inch apart. Then place ONE of the leads on the line and trace it making sure the other lead is touching whatever you are using to make the template. You will have an exact copy except one will have a 1/4 inch seam allowance! I have done it this way many times.