I personally think the no propane all setup is a mistake. In theory its awesome, no issues with gas in tunnels, ferrys, crossing borders, driving with tanks on etc. You have one fuel and you are good to go, however diesel stoves simply do not work as advertised and are especially bad at altiude. Even for hot water or cabin heat the diesel Espars are great but struggle at altitude.
I serisouly considered ripping the gas out of my camper mog and putting in all diesel but tons of people have said don't do it (Stephen Stuart was very against it).
As for the construction, I think its probably one of the best features of an earthroamer and its way beyond anything you'll see on an RV. From what I can tell its very similar in principle to my camper and thats seen over 400,000 miles and its holding together just fine.
You don't inherit the world from your parents, you borrow it from your children.
1979 Unimog 416 Expedition Camper
1974 Unimog 421
2004 Dodge Ram 2500, 4x4, Double Cab, Cummins Turbo Diesel
2006 25' Airstream International CCD
2009 Harley Davidson
Sugarloaf, Boulder, CO