I've got my base load (minus food and water) down to 11kg's now. I walked the Larapinta in NT in July this year with up to 32kg some days

This was because we had to carry up to 14L of water on the long sections.
http://www.bladeforums.com/forums/showthread.php?t=416208
The Bibbulman is guchi walking by comparison. A decent hut and water tank every 20k's. My basic gear list would be.
3 season sleeping bag
Thermolite bag liner
Bivvi sack (in case the hut is full) - check this one out, seems good value and is quite light.
http://kitbag.com.au/category6_1.htm
Pack - at least 70litres. Mine is a Lowe Cerro Torre - it served me well on the Larpinta. Mountain designs have a model that they call 'The Bibbulman' so it's probably well suited.
Clothes - 2 sets of shorts, 2 shirts, one pair of long trousers - all in lightweight wicking nylon (Columbia stuff is best I reckon). Some people despense with the change of clothes and just wear the same set the whole way - wash them when they can and stink the rest of the time. Me? I like a clean set each day or two.
2-3 pairs of socks, 2 pairs of underpants, 1 pair of bikeshorts (in case chaffing rears it's ugly head)
1 lightweight fleece, 1 goretex jacket, 1 set of polypro thermals.
Boots - any good quality walking boots. The bibbulman is not hard walking so heavy dury mountain boots aren't necessary. Scarpa Treck Pro's would be my choice.
Sandals - Teva or source or the like - to give your feet a break at camp and to walk on a swollen ankle if you happen to roll it a long way from help.
Walking Poles - I'm a convert. My right knee swelled up badly one day on the Larapinta and I was able to walk 16k's by favouring it, using the poles as crutches - next day it was fine.
Cookset - Snowpeak titanium.
Stove - Gas, petrol or metho - each has pro's and cons. I use an MSR Whisperlite - it fits ok into the potset and although it is a tad heavier than gas you save on fuel weight and it is guaranteed to work every time (as much as these things can be) in cold rainy conditions.
Water - 1 10 litre MSR dromedary (for water collection, emergency cariage and the like) 1 3 litre Camelback. 1, 1l army canteen (for back up and to drink out of/pour for cooking around camp)
Groundsheet
Sleeping Mat - I use the foldable honeycomb foam Thermarest (non - inflatable) It's light and it can't get a puncture. Does take up more room however.
I've probably forgotten a few small things - will add them later if I have.
ps: I've walked most sections if the Bibbulman - just not the whole thing in one go - it's a great challenge and I'm sure you'll love it. :thumbup: