After 6 days ago ,7 May 2014), when LXQt is released I make a word for trying to build LXQt package for slackware. Fortunately, Eric Hameleers or Alien BOB has created his slackware package for this LXQt. Definitely fortunately, because If I try to fulfill my word, I must willing to spend my time trying and trying to configure and building the LXQt. As If I can do it now... :D
We can build the LXQt package from Alien slackbuilds. The total size of generated packages from the slackbuilds is only 7.9 MiB on my Slackware64 14.1. These are really quite small for a Desktop Environment.
Below here is the screenshot of my slackware64 14.1 with LXQt
I'm quite fond of this DE, I'll stick with LXQt for now.