I know it's awhile from now, but posting this now to see if anyone's interested. I have one ticket available for On the 20th Century for sale: Rear Mezz, Seat E101, for $25. July 19, 2PM. The view is not obstructed at all. Seating Chart
Also, it's a HipTix. Are HipTix only available for pick up the day of the show, or can they be picked up earlier?