Maybe consider a BOWLUS travel trailer ????
https://bowlus.com/ They come with a 24 month all inclusive warranty and there is no dealership network, so you always get "the ultimate factory service experience". You deal with "your personal factory representative" from initial contact throughout your ownership.
They offer three trailers, the Endless Highways from $190,000, the Endless Highways Performance Edition, from $225,000 and the Terra Firma starting at $265,000.
All are 26' long, have a GVW of 4000 pounds, a single axle configuration with 19 gallons of fresh water, a 21 gallon gray tank and 4.5 gallon capacity black tank cassette toilet and a "whopping 800 pound cargo capacity"....
Their website doesn't address how they help owners resolve problems after the 2 year warranty, but with no dealership network, taking it back to the factory for anything could result in a cross country trip for anything "factory related". The factory is located in Oxnard, CA...
The "brand has been owned by the likes of Greta Garbo and Clark Gable, so if that matters, "silver screen greats have owned silver trailer greats"...
There are "alternatives to Keystone" and anyone who is not satisfied with their trailer should "honestly and reflectively consider ownership or continued ownership of the brand".... Keep in mind, the last sentence on the Bowlus website says, "Bowlus reserves the right to alter specifications, equipment and pricing without prior notice." So even at more than a quarter million dollars, you can't buy anything that's "reliably going to be what you expect"... YMMV