Steve,
I haven't ever seen a photo of the guantlet track until the one you posted. I have this, but you cant see much:
BTW this was in a book that The Tribune produced.
I haven't yet talked to anybody at the paper, but I do know who to ask and should.
If you find any other photo please share, even if via E-mail.
Oh yeah the Penn Central goes under the B&O and Erie, This photo was taken from the B&O and is of the Erie bridge. PRR is going for a swim:
This is a postcard.
I like your plan, but it would NEED to be before 1960 for me ;D