I just saw that very C-54 at the St. Louis airshow last year.
That guy was really nice, at the end when were clearing out the spaces so the planes that wanted to leave could, he let me look all around the plane as much as I wanted, as well as the 747-LCF, C-40/Boeing Business Jet, and V-22. I for got to snap pics of the V-22 because I had to tow it, and did not think about it.