I met a couple who bought one of those triple axles in Airstream form. Those things weigh in around 10K#.If you notice, the 30'+ all went to 3 axles about that time, too, like adding a tag axle to carry some of the weight and reduce the leverage hanging out back.
The original owners had a 3/4 ton 8.1L GM pickup to tow it with. Warned me about not passing a gas station. It's GVWR is 13,000 LBS 500LBS over what the 2003 one ton was rated for, but, never took it to it's max weight.I second this remark.
Looking at the specs on these and they are not too light.
That was the beginning of Jody's Trek P400/4L80E repower saga - he and Connie were headed to the Grand Canyon for their wedding anniversary to reenact their honeymoon by hiking from the North Rim down to the Colorado River and back up to the South Rim. As he pulled into the campground here in Lincoln the engine died. Broken rocker shaft pedestal. They took their Aveo they were towing on out there. About a mile or so down the trail Jody stumbled and tweaked his ankle bad and had to be mule-evacced out. Hospital revealed he'd broken his ankle. This was the guy, who for an annual firefighter charity event just the year before - just before his retirement - ran up 20 flights of stairs in full firefighting rig - boots, pants, coat, gloves, helmet, oxygen tank and mask!When you see the Grand Canyon in person, the scale is simply incomprehensible. No video, photo or description is even close.