My first home had plantation shutters like that, and they add a lot to the value of your home.
I know that Norm did an episode on building them on the New Yankee Workshop. He had a series of different jigs to make sure that your staples end up where they need to be, and to lock the bar to the slats. That said, the Rockler kit is probably a good start, but you might need to modify your technique if you plan to make a lot of them.
Doc
As Cort would say: Fools are the only folk on the earth who can absolutely count on getting what they deserve.