I would think within in a short period of time you should soon be able to replicate and down load and print out PDF templates of targets you can paint in the flat black on white boards or buy ready made posters in the correct size and make your own fixtures for pennies on the dollar.

  As long as you're in the ball park on the placement and dimensions you should be good as long as the calibration takes. Do you think the calibrations painstakingly made make any difference as soon as a 300lb fat bastard sits in his Civic , I don't think so.