Can't find anything in writing, but my belief was that the top tier was meant to extend to be the same as the bottom levelDidn't they have to revise design thru a lack of funds
[IMG='width:347px;']https://www.weekendnotes.com/im/003/09/reg-hickey-stand1.JPG[/IMG]
edit:
A possibility could be that the Scoreboard goes into the gap like the brownlow stand, but I don't know how easy that would be to retrofit.
[IMG='width:405px;']https://www.austadiums.com/news/images/kardinia-brownlow-stand.jpg[/IMG]