In early 2023, I came across one of these "unicorns" in northeast Philadelphia area in a private holding. It was loaded with options with many of those options appearing to have possibly been either dealer-installed or owner-installed at some point in time because of the numerous flaws that I noticed that could not have been attributed to a factory install. Regrettably, I did not note the build date on the trim tag.
The D-88 stripes and body paint appeared to be a very old lacquer job so possibly (but not plausibly) original? Attached is a photo of the "unicorn" with the front license plate redacted.
Bernie