options exits to create a full size template.
First, print out the scaled picture below on the left on regular 8 ½ " x 11" paper. Measure the length and width and add them together. Divide this amount into the full size length + width sum and multiply by 100. The resulting figure is the percentage increase you need to blow up the 8 ½ " x 11" paper on a photocopier onto a ledger page measuring 11" x 17". The full sized template will just fit.
Print the picture [below on the right] twice on legal size paper. The first copy should be of the left side and the second copy should be of the right side. Place them side by side and measure for the correct Length. Take some scotch tape and tape them together. You now have a full sized template.