People travelling for many months, overlanding, motorcycle cruising, ATW, vancamping etc. that don't spend a good month locally field testing their setup kills me. You need to KNOW if your rig and setup will get you through a mid March snowstorm you weren't prepared for. Your water filter systems need to be tested with every kind of ditch water you can find. Does your propane tank have compatibility in Guatemala or any other country you'll go to?