I bought the shell of a Trek Bwana in late June '14 to make into a "CSU", Camping Support Unit. Installed a Huntsman 1600mm SS kitchen (POS btw), 58L under-slung water tank, MSA large refrigerator slide, installed various 12vdc points and then built up the front pod as the power pack. 2x120ah Fusion AGM batteries, 12vdc 3 way switch, fuses, 1000w inverter, 30ah charger, 30a solar regulator and then a 100 w soft panel PV.
We stored the tent, SI mattresses, Weber, portapotti, and 2.5M square canopy, 80L Waeco and other stuff. Probably loaded more than the normal CT would have been. We towed it 7800 klms to FNQ and back didn't know it was there. The only problem was I drove to fast for the tyres the previous owner had put on, blew one out just north of Moree on return.
It works fine for blacktop and semi-off road, slipper springs and sleeping on the ground is why we are looking to upgrade to something else. I'll resize some pictures and post.