68Monaco440HP.
You are right about the airstream being at the bottom of the line when looking for a high end trailer of the day. But They were light. The Cabinets in my 72 25 foot Safari were all Aluminum with a stick on cover that stayed on as long as we owned it. The cabinet doors were Tambour roll up with a paper backing. They lasted a few years and had to be redone. We redid ours with canvas material backing that lasted the rest of the time we owned it. We loaded ours on to rail cars, boats by using slings ect. And yes we poped rivets often but most were easy to get to. But you need to remember these were built for travelers like us, that drug them down endless miles of dirt roads and out thru farm fields and were often pulled thru mud by other trucks. We traveled in groups so always had help and on the bigger trips we had a factory support vehicle alone with extra parts. It was a different time and they were just simple, light weight trailers built after WWII by people that had built aircraft during WWII. For sure not top line luxury.
We gave up our Airstream as prices went up and those we traveled with aged as we did. And I had drug it so long I was just tird of it. Our camping remained and we are still travelers. We have worn out many tents, love popups, as you can take those two things most any were. We now have a small motorhome that we use often in the back country on one lane roads ect. The problem of getting larger rigs into small places kept us in small rigs. Also when you drive all day and park your rig at the end of a dirt road for several days while you go tent on a lake or stream having an older rig is far wiser than a high dollar rig. So we still work at not standing out..
AS far as which rig is the best. If you go into the back country, until some one makes a 1100 sq ft rig that folds up and fits into your back pack or glove compartment some of us will have to stick to our small rigs. My wife and I have had a couple big rigs but they just do not work for us..
The way we see those people we meet camping is if they are there no matter if they are in a tent or driving a big rig they are there for the same reasons we are. To enjoy..
As you said next to the rigs with oak cabinets and plush furnishing they were not much. More like a Model T Ford. But we did use the heck out of them..