that stock spoiler... is it for 4th or 5th gen? I know you posted 4th, just wondering if by any chance you made a typo, seeing how everything else is for 5th gens.
And for the Sylvania Silverstars... just get them at the right auto parts store... I bought the bulbs at Auto Zone, for 19.99 each, then went to Advance auto and got the $10 mail in rebate form! (Advance auto had the bulbs for 22.99)