The 'Expedition' is a great, but compact, bathroom model. This 'Expedition+' model is it's big brother.
Much the same spec: 20mm insulation, diesel heater, leisure battery, solar panel, fresh and grey tanks, sink, hob, outdoor shower, 3 pin socket and both USB and USB-C ports. As well as a hot water system, inverter, a fridge freezer. And the awesome axe, shovel and waffles on the textured exterior.
The battery is a better spec, the bigger bathroom has a cassette toilet, the hob has two burners and the fridge freezer is much bigger.
Weight: 625kg - so more in line with other demountables on the market
The tailgate can stay attached, unlike other models on the market of this size and bigger.
To give you more tolerance, customers might consider re-plating the rear axle weight (getting it reassessed) so you're well within permitted limits.