Serial #1041, built 12/76. I'm wondering about it a bit since the owner had been uploading photos of it to your Yahoo Chalet owners' forum showing the progress of his 3/4 ton axle conversion, then it showed up on Craigslist about two weeks ago, then on eBay, then in a Craigslist ad over the weekend as part of a huge estate sale.
**10/22 Edit: the eBay seller responded today to say the Chalet owner had been killed in a car accident two weeks ago.**