I haven't bought the components separately before, so I can't say. The kit is great because it comes with all you need. I just finished buffing the hull and deck tonight, I just need to hand buff a few areas that the machine wouldn't reach, then seal/wax it all.
Here's a pic from when I was midway through the starboard side, showing the difference. It took very little effort to bring back the color with the circular polisher.
I'm going to try to find some touch up paint to hide that big scratch - it's pretty deep. I decided I'm going to replace that pinstriping also.
2003 Prostar 197 35th Anniversary