Last year I bought a pre-painted rear-deck-lid spoiler and template from Sewell (best prices). The color matched my car perfectly. Installation was easy except for a slightly tricky consideration re: the placement of the holes.
The "consideration" is this: Dime-sized circles are drawn on the template and the assumption might be to drill in the center of those circles. That is not the case. You must find the little hole that is punched in each circle for proper drilling. The holes on my template were not in the center of the drawn circles. The job is a breeze; just follow the (clear) instructions.
I will give the template to the first club member who requests it. All I would ask is $10.00 for postage on the mailing tube.
NB: Please write to me at Jimbad@verizon.net