I spoke to Adam(Ranger) Sunday night about the idea and he said as long as you can supply the wood and give the owners plenty of time before hand, so they can get time off work, it should work. Need to cut wood as the last thing you want to do is cut wood for a couple of hours.
Maybe see if Murray River Sawmills will 'donate' their off cuts or get the township of Barmah to donate some, in return take them all for a cruise on the boats?!
Also allow 3 days. 1day to get there, 1day relaxing, .5 day to get home