If you're looking for ideas, have you thought about getting a rear sunshade visor? Personally, I think our cars look good w/ 89+ tails & no spoiler and that jdm visor piece. Very clean look.
I think the lines of the car look so good it doesn't really matter if you have a stock spoiler or not...just please PLEASE don't put a jdm tyte aluminum trunk trophy on the back.