Installing is not complicated. Screw mounting clips to under cabinet and
snap shade bracket into clips. That's it.
We used an electric saw (DeWalt with orbital action). Steve had been needing a new one for months anyway, he's a woodworking hobbyist, so I bought it for him at the Lowes in McKinney. As Barry mentioned, though, it really depends upon the depth of your valences and the design of the screw rail on them. Our '03 U320 needed to have some relief cuts made in nearly every valence's rail; Barry and Cindy's valences did not. You might even get away with using a rotary tool like a Dremel if you take your time. It's easy enough to wait until you're reinstalling the first valence to see if you need to invest in any additional tools or not.