I can suggest a way to install only KDE without Gnome but it a bit harder
that a regular install.
If you know how to Debootstrap a debian system, then it should be easy.
Debootstrap installs only the base system with out x or any main packages
installed, than you can simply install what you want.
Here is the site I user to debootstrap:
https://help.ubuntu.com/6.10/ubuntu/installation-guide/i386/linux-upgrade.html
I will explain what I did different from this site for trisquel.
First I booted a live cd, any linux live cd will do. Then I Partitioned my
disk the way I wanted with Gparted whitch is already installed on the
trisquel live cd.
For Trisquel Awen I first debootstrap Ubuntu Jaunty, then when it finishes
change the sources to trisquel. If you'r using the trisquel live cd, you can
use the same sources.list file from the cd. You can copy the following 4
files from /etc/apt to make it simple like I did. "secring.gpg" "trustdb.gpg"
"trusted.gpg" "sources.list"
Then in the chroot terminal type:
apt-get update
apt-get dist-upgrade
When that finishes you have a minimal Trisquel Awen System. Now just install
kde-full.
sudo apt-get install kde-full
Then you shall live happily ever after. THE END
