You'll need to set up a few things to run one of those Slackbuils. See here
for instructions. It is a simple matter to change the VERSION in the script. It's probably just as easy to create your own package or Slackbuild anyway. Personally, that's what I'd do - creating Slackbuilds isn't hard and a very useful skill. The Slackwiki
has instructions on creating a Slackbuild should you need assistance.