Ya 1 piece headlights generally suck and don't end up looking/fitting as good as one might think.
Like said, get some 6 piece Cobra's, smoked or not they'll be nice.
Might run you some cash unless you go through ebay.
www.blueovalindustries.com
BTW, those are about the best headlights you can buy for a stang, so that may justify the money. Not sure what you are wanting though.