All the mystiques have a chrome strip that runs along the bottom of the reflector and the tail lamps. So even if you do paint the reflector, you'll still have the chrome strip at the bottom of it. I guess you could paint that too if you removed the chrome from the strip but that's kind of a PIA. And if you popped off the chrome strip all together you would have an ugly gap.
So, to make it easier on yourself just get the tail lamps as well, if you go to a junkyard, see if they'll trade straight up. I blacked out the chrome strip on my stique with electrical tape, very easy and it has stuck well through rain and all for like 3 weeks so far.
