I have been doing quite a bit of reading. I need to learn a lot more about Airstream trailers and suitability for boondocking, so I have no view on that yet.
On the other hand, I have an initial selection. This is based wholly on paper, and have never seen one. So, a lot yet to learn. Anyhow, it looks to me like the Outdoors RV Trail 24TRX is viable.
https://www.outdoorsrvmfg.com/trail-series-24trx/
Dry Weight is 8.5K
GVWR is 13K
CCC is 4.4K
Tandem 6.8K axles
Goodyear LT235/85R16 tires, load range G (max load capacity of 15K = 3.75K x 4)
Traditional leaf spring suspension, but with shock absorbers, MorRyde CRE3000, greasable bronze bushings, mud flaps
100 gal fresh water
65 gallon grey water, 40 gallon black water
10 inch I beam frame rails
40 gallon gasoline fuel tank; Cummins gasoline generator 4K watt
Aluminum framing
170 watt solar panel standard; second 170 watt optional (340 watt total)
Four battery rack
I like this trailer because, on least on paper, the construction appears solid. The axles are of adequate load capacity (which, to me, means below spec), tires are of proper size and load capacity. Water capacity and electric capacity are good. I like that a generator and solar is built-in.
I don't think we'll ever carry 4.4K pounds. A full load of water and generator fuel will be roughly 1,200 pounds = [ (100 gal. fresh water + 10 gal. water heater + 40 gallon fuel station) x 8 pounds ]. I do not have "toys" to take; a couple of bicycles, kayaks, and camp chairs would come in at below 400 pounds. I can't see that we'll ever bring over 1,500 pounds of food, clothing, and other gear. My best guess is we will never top 3,000 pounds. So, practical GVWR will be more like 11.5K. In this respect, axle and tire capacity looks good; tire capacity at 77% of spec, axle capacity at 76% of spec if tongue weight = 10%.
This will undoubtedly change when I see one, but I think all I need to for this travel trailer is to get a good mattress and retrofit disk brakes. I wish they had disk brakes as an option. At a practical GVWR of 11.5K, I think I could safely tow this trailer with my existing truck. Tongue weight would be between 1,150 lbs and 1,725 lbs, so I need to check that out carefully. I use an Equalizer weight distributing hitch with 1,400 lb rating now; need to investigate truck hitch, etc. I'll probably start a separate thread on that subject.
The negative: this trailer is 30 feet long, a couple of feet longer than what I would think is ideal. Based on what others have said, it does not seem like a serious problem.
I am not going to buy a trailer now when people are paying over MSRP, so I have a lot of time for research. I would take a trip to Oregon to investigate first.
At any rate, further food for thought.
Thanks for the conversation.