There was a giant green dinosaur,(very much like a Sinclair design),nearly fitting those exact measurements at Peotone today.
I don't know the seller,but he's in that same spot every time,and everyone who was there today saw it/touched it.
He was in the middle room,between the two main buildings so it was a highly trafficed spot and was still there when I left at noon.
I'm sure someone took a picture of it,and it will most likely appear in the shows recap later on.
Collecting Vintage Sunoco