It's a pretty simple trailer with commonly available parts and appliances. Easy to tow and care for. Airstream laid the carpet down and then installed the furniture on top, including the bed. Open the rear compartment and check for wet flooring under the carpet there, as well as under the front window (between the dinette seats) . The carpet can hide a bad floor, and should be removed from concealed areas. It can be repaired, but that's something you'd have to factor in.
Also, the window manufacturer went out of business, but there are universal parts like "D" gaskets that work fine.