Even for those who know the subject matter, building these VMs as demonstration is a long and difficult process - this is awesome not least because it's a huge amount of work by someone. :)
Having seen this I'm tempted to go build Vagrant boxes for these, so they can be updated and forked more easily.
Unfortunately these don't appear to be licensed, so unless they're declared open by the author, it'll require starting from scratch.
From the one blog post about RuxCon, I'd say the author is in Australia. Might be worth contacting them via https://ruxcon.org.au/contact-us/ as the person who made these had something to do with the CTF in 2012.
