I actually attended the 1963 Oakland roadster Show. I was in the US Navy and attending Radar School on Treasure Island, between San Fran and Oakland during that time. Bought a sweatshirt from Ed Roth with "Mother's Worry" on the front. He autographed it. I had a bunch of pictures but 50 years later, they're in a land fill somewhere with the sweatshirt. Can't attest to the accuracy of the diorama but it does seem familiar. I especially remember the red Merc. I think Roth's booth was on the left but then, it could just be my imagination.