To make templates, you need a good three view of the part. Iwould use light ply or a good grade card board. Lay out the spacing on the top and side views, then transfer the measurements to the front view referencing each location to a centerline on the drawing. Transfer the front view lines tothe light ply using tracing paper. Remember you'll be using the female part of the template, so allow for sawcut. Cut inside the line. Mark the part using the same spacing as the plans. It's not easy, but if you work slow, you'll get a very accurate part.

pmw