No, you weren't wrong; I'm blind. I was, as the ladies like to say, "looking like a man." I went back with a flashlight and found the serial number stamped on the co-pilot side shoulder harness bracket. It took some doing, but I managed to get a readable photo of it, and it bears no relation whatsoever to the number on that packing list, above.
It would appear that I own Kitfox Series 5 serial number S95040118.
Thank you again, Dave. Much appreciated!
Now, anyone who cares to give an opinion on my reading of this photo, please feel free to chime in.