easily accessible videos of Internal Training in Aikido . . . that can help illuminate the path for those of us who don't really have the opportunity to have direct contact with this type of work at this time . . .
My understanding is that Bill Gleason will be visiting Australia on a regular or semi-regular basis (at least once a year) going forward. Here's the link to the webpage discussing an upcoming gasshuku featuring Bill in Canberra: http://www.aikidoutas.org.au/
Bill is well acquainted with Dan Harden's training model, and one or more of the Australian folks who've trained with Dan may be at the gasshuku as well.
As for IP/IS training videos, feel free to check out what's been offered up (there are a few short videos of Bill on YouTube that touch on some aspects of IP/IS body skills). Just be prepared to have to unlearn then relearn many if not all key aspects of a given method, if/when you meet a qualified teacher of that method.