I'm getting ready to go spend 6 months in the desert, good times. I want to take a bike with me and I think a folding bike would be a great option. So I have been doing some research and would love some advice

What i'm looking for is simplicity, durability, and being able to survive being hauled halfway around the globe and back. So i'm looking single speed, coaster brake, and minimal additions. It needs to be able to fit my 6'3" and 220 lbs, and ideally i'd like to spend less than $400

So far what i've found that looks interesting are the dahon boardwalk S1, the dahon speed uno, and the citizen bikes gotham 1. From what i've been able to find the boardwalk is a little on the weak side and the citizen bikes have weak hinges. The speed uno looks like a real good option but I want to make sure i'm not missing anything.

Any help would be greatly appreciated.