Need install of MediaWiki + several extensions (see below). All the extensions can be obtained from subversion/direct download. Should only take a few if already familiar with MediaWiki / extensions.
Several lines of code might need a few lines configured properly to run, believe they are php but haven't look at it yet.
Extensions to install:
-CKEditor (formerly FCK Editor, whichever version more recent)
Understanding of Mediawiki and extensions. All versions must be most recent, they are all obtainable through download/subversion, otherwise I can send all contents compressed, FTP or can install the files on host along with /extensions.