Yes, use a single stage paint to do the stripes after the base color coats are done.
Jerry is right on the mark here. I have done a Z28 and SS Camaro's and Chevelle's stripes by single staging them right on top of the clear. Sand the clear with 1000, use good 3m striping tape. After the stripes are painted, sand the edges at 45 degrees in both directions to break the sharp tape edge, and do not get crazy with this or they become to smooth. The end result is you can feel the edge, and no way will it hold wax or polish.
Some of my non painter know it all buddies will then try and say, " well Single Stage won't be as shiney as the clear". Bull ! most of the high end Pebble Beach cars are done in Glasurit SS, most of them are non metalic.