I should have a pdf of the template somewhere for the svt spoiler. You can essentially make yours you just using painters tape and aligning the wing on the back of your car. Get some one to help you position the spoiler and mark off where you will need to drill. The template seemed like it was more work to get it aligned on the car than it helped.
Not sure how the 03's are or if the SAP spoiler mounts the same as the svt wing but I had to cut access points on the inside of my hatch to install, there were no templates for that.