Very cool story with an audio interview of the guy that found it. He had no idea what kind of trailer it was - just thought it was cool so he bought it. It was in plain site along the highway and he drove by it for 10 years before he finally tracked down the owner... It's for sale but no info on asking price. No one knows for sure - but it's estimated that fewer than 10 of these were ever built and they were crazy expensive for the day.
If this can be found your dream trailer is out there too!