Not sure where I'm up to in the cart count. Too many have been conceived, half or fully built and then torn apart to start again. But this feels closer to final. A test walk soon will help decide if this is the case or not.
I originally wanted a bed base structure so that I could take the wheels off it and sleep a couple of centimeters off the ground. But as construction progressed, the weight increased, until that started to become a problem. Back to ground sleeping without the platform. And the build is lighter.
If the trial goes well, I'll add eye holes to shade cloth to help tie down the load. A tarp will go over the top for weather protection.