Thanks to everyone for their input. I'd already tried the salvage route without success. The only off-the-shelf windows
I could find were slightly too big and would have necessitated some creative fiberglass work and internal framing work in the door; which while I'm capable of doing I'd rather not have to. I've had good experiences over the years with FGRV folks here helping and this time was no exception ---- JohnnyM came to the rescue with the exact size I needed. He shipped it to me and charged me a very reasonable price for window. The one he sent is actually a better version --- the window is held up by a crank mechanism instead of the push-through prop that failed on the one I had. I'm in the process of polishing it up and will install it this weekend.
To Stude. Yeah, harsh. This 43 year old Trailmite is one that has received countless hours of work that Iíve done myself, including a frame-off session in which the frame was rewelded, strengthened and painted, the subfloor was replaced (marine plywood), the fiberglass shellís cracks were repaired and the whole shebang was made tight and leak-free. Iíve also rewired the whole thing, installed a Fantastic Fan (great upgrade!), installed an air-conditioner, replaced the stove-hood, installed a sound system, replaced the cabinet doors, constructed a slide-out platform on the bed that allows us to sleep lengthwise instead of widthwise, installed new linoleum, welded on a tongue platform to accommodate a triangular tongue box, replaced the running lights
and tail-lights with LEDís and oh yes, painted her inside and out. We use our Trailmite extensively. Itís been across the US and back three times and has made countless trips all over California, Oregon, Washington, Nevada, Arizona and Utah. I use it many nights a year in my profession (nearly 90 nights in 2010!). So your suggestion that I have ďneglectedĒ our Trailmite is puzzling and saddening.