Yes indeed, #0544 built in 8/76, previously seen in Shipshewana Indiana a year or two back, but harder to see then since it was photographed in a shed.
Always glad for all who can keep an eye out for 'em, there are ads I miss since my less-than-perfect searches don't pick up as many as I'd prefer.
This one is also appearing on eBay now here
www.ebay.com/itm/330942988779
But not to be confused with the other one appearing simultaneously
http://cgi.ebay.com/ebaymotors/k5-/111101823633 which is one with a serial number / build date that I didn't get from its prior eBay listing under a different owner in Spanaway Washington. Now it is back in Flint Michigan, its birthplace.