I have a ProKit and need CC plates so I'd also suggest you get some. Even if they are not needed for 'spec' alignment settings, they are needed for performance-oriented settings.
Poly Isolators are nice but will add a little height to things. If yours are in okay shape and money is real tight, you can likely get away with the stock isolators (even if they require some patch work).
And that's about all I used on my last spring install.
Good luck.