K&J,
We desided to start with a Jabiru and then option up to only include what we wanted,and not the "standard" inclusions offered by CC.
We could of got a Kakadu for what we are spending on our Jabiru,but we have added lots and have also taken a few options off.
We went with the gas hot water system,as it was a third of the price of the diesel system and we didn't want a heater.We only have the 1 tank fitted at this point in time,but Grant did say that another can be added at a later date.
If you start using a kettle and toaster that can be used on the stove in the campers kitchen you will use much less power.With the 2 batteries in the camper as well as the dual batteries in your 4wd you should be able to get through a long weekend with no dramas at all,even longer if you add a good solar set up.
PS is you want a quick and easy way to do baby's bottle and formula goole "jetboil" its what we use.
cheers, Matt