Nik - I had a look at the e-book sample - looks great. That and Biggles post has spurred me on to do something with my overlandtrack domain.
Biggles, you mentioned you were coming into Devonport on the Ferry - its not clear if you are bringing your own car to drive to Lake St Clair.
If not - make your way to Launceston on Redline Coach
www.redlinecoaches.com.au and then use Tiger Lee.
I would highly recommend Tiger Lee -
http://www.tigerwilderness.com.au/ he is a fantastic guy and very fair.
Tiger as his nick name goes really does offer a door to door service, well OK not for you in Victoria but you can contact him and he wil guarantee
to be at Lake St Clair - or wherever you want to meet him and he will then drop you of at your exact location - This is from personal experience and feedback from friemds. Tiger is also flexible about times - 2 years ago I booked him to return from Lake St Clair for a 2pm pickup - I came out a day early - the weather was REALLY bad and I was surprised to find Tiger there waiting for me - He explained that he had dropped off a couple of people at 1pm and saw that the weather was closing in
so he checked with the ferry operator and found out that I was booked on a late (2nd journey) at 3pm so he decided to hang around and see if I wanted to go home a day early - if not he would come back and get me the next day. I chose to go with him and he knocked off $10 from my already agreed fare of $89 as it saved him a return trip. I dont think you will find a better operator. So that is my firm recommendation for getting out of Lake St Clair - he will pick you up at the visitor centre - you dont have to try to get out to Derwent Bridge.
If you do get to Derwent Bridge it is possible to connect with the Hobart to Queenstown coach - Logistically somewhat more difficult.
This is a daily service.
For the Cradle End
McDermot coaches operate the Cradle Valley shuttle service (inside the park) They also operate bus services from Launceston to Cradle Valley
and many other locations around the State.
http://www.mcdermotts.com.au/Paul Brown is one of their drivers and is a very good friend of mine as is Peter McDermott (the owner) Paul often does day trips in a private car Lonnie to Cradle - price depends on the number of people. Both of these services are very dependable
Finally if you get stuck - email me - except I can't help you out on the 28th of August as I hope to be walking with Nik