I recently procured a rear deck spoiler from the local junkyard and I'm wanting to put a spoiler on my trunk lid. Unfortunately mine did not come with one. It doesn't look like drill points are marked like my old civic. Is there a template somewhere I can use? Also, what is the best way to install one? There is a howto thread on lifting it so water runs under it. Is this the best plan or is there a way to seal it when installing it so it doesn't trap water and rust out from underneath?