Saleen S281 Wing Install???!!! 99-00 version

Ok I have a 2000 mustang GT and recently took off cobra R wing, I now have 10 holes on my trunk from stock spoiler and cobra R spoiler, so Im gonna have to get trunk painted, I just got in the mail the saleen spoiler, heres some pics of the pre cut holes in spoiler and hardware kit.......

http://i162.photobucket.com/albums/t274/kosmos187/1.jpg

http://i162.photobucket.com/albums/t274/kosmos187/2.jpg

http://i162.photobucket.com/albums/t274/kosmos187/3.jpg

http://i162.photobucket.com/albums/t274/kosmos187/4.jpg

http://i162.photobucket.com/albums/t274/kosmos187/5.jpg
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Now heres my cars trunk lid with holes capped till I get it repainted and filled in, *notice how on the sides their is 3 holes from factory spoiler, the saleen wing uses 2 of them which i showed with black arrows in picture so i gotta fill in the middle one which is stupid

http://i162.photobucket.com/albums/t274/kosmos187/7.jpg

http://i162.photobucket.com/albums/t274/kosmos187/9.jpg

http://i162.photobucket.com/albums/t274/kosmos187/8.jpg

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I have been reading peoples forums talking about how to install this wing and Im confused, most say use the factory holes and use 3m tape for the rest of the wing, which that is a easy solution, but the spoiler has 12 holes in it for bolting down, 3 on left and right side and 4 in the middle on the bottom, and 1 little hole in each cornor left/right side so total 12 holes to bolt to, so Im having a hard choice wether to paint trunk than drill 10 holes to bolt spoiler down or use factory holes and use 3m tape, I understand why it has the holes on the bottom to keep it held down more instead of just using the stock holes but damn I dont know what to do, please help make decision